The Boy Mechanic Vol. 1

700 Things for Boys to Do

800 Illustrations Showing How

1913

Published by Popular Mechanics

The Boy Mechanic: Volume 1 1913

700 Things For Boys To Do

590 pages 800 Illustrations

CONTENTS [461]

A

Accelerometer, Simple 93

Acid Burns, Treating 126

Acetylene Gas Generator, Homemade 57

Acetylene Lamp, Lighting 401

Aerating Water in a Small Tank 241

Aeroplane, Paper, How to Make 329

Aeroplanes, Model, Equilibrator for 11

Alarm, Burglar, How to Make 368

Alarm, Callers' Approach 87

Alarm Clock Chicken Feeder 79

Alarm Clock to Pull Up Furnace Draft 107

Alarm, Electric 94

Alarm, Electric, Door Bell and 114

Alarm, Electric Fire, How to Make 430

Alarm, Electric, That Rings Bell and Turns On Light 337

Alarm, Electric Time 433

Alarm, Fire 47, 359

Aluminum Polish 428

Aluminum, Satin Finish on 198

Aluminum Wire, Insulating 306

Ammeter, How to Make 49, 203

Amusement-Boys Representing the Centaur 173

Amusement Device--Merry-Go-Round Thriller 209

Amusement Device--Merry-Go-Round, To Build 359

Amusement Device--Teeter Board. Revolving 297

Anesthesia, Electric 445

Animals, Small, Trap for 82

Annealing Chisel Steel 362

Annunciator, How to Construct 57. 416

Aquarium, How to Make 64, 210

Arbor, Grape, How to Build 73

Arc Lamp, Homemade . 132

Arc Searchlight, Self Lighting 9

Arms and Armor, Imitation:

Part I 235

Part II 242

Part III 248

Part IV 263

Part V 271

Part VI 279

Part VII 284

Arms, Drip Shield for 258

Arrowhead, Flint, How to Make 23

Asbestos Table Pads, Homemade 212

Athletes, Weights for, How to Make 274

Atomizer, How to Make 158

Automobile, Boys' Homemade 402, 430

Automobile Engine, Cooling Water for 236

Automobile, Greasing the Front Wheels of 320

Automobile Headlights, Adjusting 217

Automobile, Painting 357

automobile with Sails 326

Axle, Cart without 291

B

Babbitt Ladle, Emergency 264

Babbitt, Ladle for Melting 173

Bag, Changing, for Plate Holders 212

Bag, Sewing, How to Make 386

Bags, Paper, Use for 19

Balloon Ascension Illusion 300

Balloon, Pilot, How to Make 118

Balloons, Paper, How to Make 215

Barometer, Homemade 151

Barometer, How to Make 188

Barrel Stave Hammock 75

Barrel Stave Sled 383

Baseball, Playing with a Pocket Knife 250

Baseball Throwing Practice, Device for 312

Bath. Shower, To Make 15

Bathtub Stopper, Substitute 429

Batteries, Connecting Up to Give Any Voltage 93

Batteries, Dry, To Obtain Cheaply 410

Batteries, Dry, To Renew 369, 378, 401

Batteries, Gravity, Why Fail 115

Battery Binding Posts, Wire Loop Connections for 449

Battery Cell. Dry, Making 160

Battery Connections, Wire Terminals for 168

Battery, Grenet, How to Make 83

Battery Motor, Controller and Reverse for 72

Battery Motor, Reversing 405

Battery, Non-Polarizing, How to Make 151

Battery Rheostat 80, 445

Battery, Small Storage, How to Make 121

Battery Switch 99

Battery, Thermo-Electric, How to Make 59, 140

Battery Voltmeter 153

Battery Zincs, Old, To Use 87

Bed Warmer. Electric, How to Make 338

Beeswax, Substitute for 129

Bell, Cracked, Restoring Tone to 71

Bell, Return Call, with One Wire 101

Bell Ring Register 316

Bell, Ringing by Touching a Gas Jet 403

Belt, Eyelets for 432

Belt Lace Caution 239

Belt, Round, To Make without Ends 243

Bench Lathe Made of Pipe Fittings 316

Bicycle Catamaran 145

Bicycle Coasting Sled, How to Make 231

Bicycle Frame, Enameling 385

Bicycle, Runners on 157

Bicycle, To Attach a Sail to 425

Bicycle, Trailer for 397

Bicycle Trouser Guards for Sleeve Bands 283

Bicycle. Water, How to Make 335

BilI File Made of Corkscrews 315

Bind Magazines, To 40, 56, 406

Bird House, Proper Design for 201

Bird Houses, Clay Flower Pots Used for 277

Bit, Gouge Used as 411

Blotter Pad, Corner Pieces for 8

Blotting Pad, Desk 17

Blowpipe, Homemade 428

Blueprint Lantern Slides, How to Make 120

Blues, prussian and Chinese 401

Boards, Joining 268

Boat-Bicycle Catamaran 145

Boat-Canoe, How to Make 451

Boat-Catamaran, Cruising 423

Boat, Ice, How to Build 357, 382

Boat, Paddle, How to Make 100

Boat, Paper, How to Make 321

Boat-Punt, Homemade 123

Bobsled, Homemade Yankee 408

Bolts, Rusted 151

Book Cover, Paper, How to Make 126

Book Holder 32

Book, Removing Grease Stains from 230

Book Rest 292

Bookcase Doors, To Keep Closed 377

Bookmark 379

Bookmark, Brass 18

Bookmark, Paper Clip 241

Books. How to Carry 409

Boomerangs, How to Make 4, 202

Bore a Square Hole, How to 179

Boring Holes In Cork 8

Bottle, Cutting Thread inside of 179

Bottle, Diving 331

Bottle, Inverted, Withdrawing Paper from Under 33

Bottle, Photographing Man in 74

Bottle Pushing on the Ice 409

Bottles, Round End. Base for 29

Bottle Stopper, New Way to Remove 224

Bowl, Copper, How to Make 185

Box Cover. Sliding, Fastener 256

Box, Fishhook 379

Box, Magic 7

Box, Water Color 257

Boxes, Rustic Window 30

Bracket Saw, Cheap, How to Make 42

Brass Bookmark 18

Brass, Cleaning 407

Brass Flag, Ornamental, How to Make 266

Brass Frame In Repoussé 237

Brass Furnace, How to Build 115

Brass, Piercing Punch for 19

Brass Plaques, Photo Silhouette, Making 217

Brass Surface, Flat, Polishing 229

Brass Work-Candlestick, How to Make 325

Bread, Loaf, Cutting 36

Bronze Liquid 329

Brooder for Small Chickens 343

Broom Holder 13

Broom Holder Made of a Hinge 33

Broom, Old, Crutch Made of 352

Brush, Counter, for a Shop 419

Brush, To Keep from Spreading 367

Brushes, Paint, Care of 267

Bulb on a Glass Tube, To Make 324

Bunsen Cell, How to Make 206

Burglar Alarm, Simple, How to Make 368

Burning Inscriptions on Trees 45

Burns, Carbolic Acid 126

Button, Changing into a Coin 234

Button. Removing from Child's Nostril 237

Buttonhole Trick 234

C

Cabinet for Pot Covers 16

Cabinet for Phonograph Records 483

Cabinet, Music, How to Make 77

Cabinet, Phonograph Disk Cabinet 79, 433

Calendar, Handy 196

Calliope, Steam, How to Make 418

Camera, Box, Repairing 379

Camera, Enlarging from Life in 111, 117

Camera, Homemade Kits for 159

Camera, Making Light proof 58

Camera, Practical, for Fifty Cents 365

Camp Stool, How to Make 222

Camp, Tin Drinking Cup for 379

Camper's Lantern, Makeshift 266

Camps and How to Build Them 341

Camps, Keeping Food Cool in 21

Can Covers, Tool for Lifting 352

Candle Shade, How to Make 191

Candlestick, How to Make 240, 281, 325

Candlestick, Water 406

Cane Chairs, How to 259

Cane in Furniture, Tightening 230

Cannon Balls, 36, Removing from Handbag 256

Cannon, Gas 197

Cannon, How to Make 42

Cannon, Lead, How to Make 338

Cannon, Toy, To Discharge by Electricity 59

Canoe, How to Make 451

Canoe, Sailing, How to Make 199

Cans, Tomato, Irrigating with 450

Canvas Cot, Folding, How to Make 154

Canvas, Waterproofing 146

Carburetor Difficulties 208

Card Trick, Rising 256

Card Trick with a Tapered Deck 70

Cardboard Spiral Turned by Heat 226

Cardboard Squares. Gun for Throwing 269

Cardcase, Lady's, How to Make 350

Cards, Mechanical Trick with 63

Carpenter's Gauge 19

Carpenter's Vise, Homemade 36

Carpet Sweeper Wheels, New Tires for 266

Cart, Dog 60

Cart without an Axle 291

Catamaran, Bicycle 145

Catamaran, Cruising 423

Catapult, Fourth of July 447

Cats, Shocking, Device for 411

Cell, Bunsen 206

Cell, Daniell 252

Centaur. Boys Representing 173

Centering, To Make Unnecessary 319

Chain Made from a Match 377

Chair, Child's Footrest on 453

Chair Legs. Rubber Tip for 229

Chair, Porch Swing 128

Chair Rockers, Safety Tips on 429

Chair Sleighs 383

Chairs, Balancing on 131

Chairs, To Cane 259

Checker Board Puzzle 189, 233

Cheese box Cover, Tea Tray 18

Chemicals. Protecting Fingers from 283

Cherry Seeder 29

Chicken Coop. Keeping Rats from 352

Chickens, Drinking Trough for 454

Chickens, Feed Box for 292

Chickens. Small, Brooder for 343

Chisel, Ice 61

Chisel, Steel, Annealing 362

Chopping Board 19

Christmas Tree Decorations, Repairing 11

Churn, Homemade Small 192

Clamp, Magazine, How to Make 435

Clamping a Cork 33

Clamps, Homemade Soldering: 137

Cleaner for Gloves 302

Cleaner for White Shoes 239

Cleaning Brass 407

Cleaning Discolored Silver 344

Cleaning Furniture 185

Cleaning, Glass, Solution 31

Cleaning Jewelry 353

Cleaning Leather on Furniture 13

Cleaning Silver 305

Cleaning Walls 375

Cleaning Woodwork 315

Cleats, Insulating, Substitute for 348

Clock, Electric, How to Make 268

Clock, Homemade Novelty 446

Clock, How to Clean 119

Clock, Novelty, for the Kitchen 360

Clock, Old, Use for 367

Clothes Rack 14

Clothesline, Double, Support for 318

Coaster, Roller, Illusion 298

Coaster, Trolley, How to Make 387

Coasters and Chair Sleighs 383

Cock, Three Way, for Small Model Work 50

Coil. Jump Spark 113

Coils, Forming to Make Flexible Wire Connections 443

Coin and Card on the First Finger 175

Coin and Tumbler Trick 378

Coin, Changing Button Into 234

Coin, Disappearing 176, 193

Coin In a Wine Glass Trick 167

Coin, Moving under a Glass 214

Coin Purse, How to Make 354

Coin, Sticking against Wall 176

Coin, Sticking to Wood by Vacuum 287

Coins, Display Rack Shows Both Sides of 220

Coins, Sending by Mail, Safe Method of 287

Compass, Mariner's 170

Compass Needle, Floating 160

Compass, Substitute for 289

Compressed Air Phenomenon 111

Concrete Kennel 23

Concrete Swimming Pool 178

Conservatory, Window 103

Controller for a Small Motor 42

Cook Fish, One Way to 206

Copper Bowl, How to Make 185

Copper, Hardening 206

Copper Picture Frame, Etched, How to Make 414

Copper Trays, How to Make 180

Copper Work--Corner Pieces for a Blotter Pad 8

Cord. Buttoned 427

Cork, Boring, Holes in 8

Cork, Clamping 33

Cork Extractor 300

Corks, How to Fit 368

Corkscrews, Bill File Made of 315

Corner Pieces for a Blotter Pad, How to Make 8

Cot. Canvas, How to Make 154

Counter Brush for a Shop 419

Crossbow and Arrow Sling, How to Make 339

Crutch. Homemade 369

Crutch Made of an Old Broom 352

Crystallization, Instantaneous 288

Cup and Saucer Rack, How to Make 105

Cup, Tin Drinking, for the Camp 379

Current Reverser 107, 111

Curtain Roller 419

Curtain Roller Spring, How to Tighten 79

D

Dance, Miniature War 255

Darkroom Lantern, Homemade 14, 340

Darkroom, Photographic, Building 26

Demagenetizing a Watch 166

Desk Blotting Pad 17

Developing Box, How to Make 220

Developing Tray, Cracked Composition, To Repair 260

Developing Tray. Photographic 269

Dish Holder, Hot 7

Dogcart, Homemade 160

Dog, How to Chain 257

Dog's Bark, Drowning with Water 435

Dogs, To Drive Away 106

Door Bell and Electric Alarm 114

Door Lock, Secret 6

Door Opener, Electric 78

Door Opener for a Furnace 83

Door, Sliding, Electric Lock for 89

Dovetail Joint 29

Dovetail Joint Puzzle 236

Draft Opener, Automatic 102

Draftsman. Spline for 406

Draftsmau's Ink Bottle Cork, Steel Pen Used In 117

Drawers, Several, Locking with One Lock 314

Drawing, Aid In 270

Drawing Instrument-Wondergraph, How to Make 436

Drawing, Landscape, Made Easy 449

Drill Gauge, Handy 252

Drill, Hand, How to Make 444

Drinking Cup, Tin, for the Camp 379

Drinking Trough for Chickens 454

Drip Shield for the Arms 258

Dry Batteries, Another Way to Renew 378

Dry Batteries, Cheap, How to Obtain 410

Dry Batteries, Old, To Renew 401

Dry Batteries, Renewing 367

Dry Battery Cell, How to Make 160

Duplicator for Box Cameras 363

Duplicator, Homemade 240

EE

asel, How to Make 415

Egg-Beater, How to Make 291

Eggshell Funnel 93

Eggshells, How to Preserve 288

Elderberry Huller, Homemade 323

Electric Alarm 94

Electric Alarm, Door Bell aud 114

Electric Alarm That Rings a Bell

and Turns On a Light 337

Electric Anesthesia 445

Electric Apparatus-Ammeter, How to Make 49, 203

Electric Apparatus-Annunciator, Homemade 57

Electric Apparatus-Annunciator, How to Construct 416

Electric Apparatus-Batteries,

Connecting Up to Given Any Voltage 93

Electric Apparatus-Battery Rheostat 80

Electric Apparatus-Battery Voltmeter 153

Electric Apparatus-Bell, Return Call, with One Wire 101

Electric Apparatus-Cats, To Shock 411

Electric Apparatus-Cell, Daniell 252

Electric Apparatus-Circuit Breaker

for Induction Coils 101

Electric Apparatus-Controller and Reverse

for Battery Motor 72

Electric Apparatus-Controller for a Small Motor 42

Electric Apparatus-Current Reverser 107, 111

Electric Apparatus-Galvanometer, Tangent 150

Electric Apparatus-Induction Coil, How to Make 138

Electric Apparatus-Induction Coils, Mercury

Make and Break Connection for 187

Electric Apparatus-Jump Spark Coil 113

Electric Apparatus-Medical Induction Coil 63

Electric Apparatus-Motor, Single Phase Induction 124

Electric Apparatus-Motors,

Direct Connected Reverse for 60

Electric Apparatus-Rheostat, Lead Pencil 145

Electric Apparatus-Shocking Machine 139

Electric Apparatus-Thermo Battery, How to Make 59

Electric Apparatus-Thermostat, Small 455

Electric Apparatus-Transformer, 110-Volt 439

Electric Apparatus-Voltammeter, Pocket 330

Electric Battery Massage, Homemade 144

Electric Bed Warmer, Homemade 338

Electric Bell, Relay Made from 94

Electric Blue Light Experiment 47

Electric Clock, Homemade 268

Electric Charges, Detector for 281

Electric Door Opener 78

Electric Engine 276

Electric Experiment, Interesting 377

Electric Experiment, Reversing Switch for 92

Electric Fire Alarm, How to Make 430

Electric Furnace Regulator, How to Make 388

Electric Furnace, Small, How to Make 48

Electric Heat Regulator, Automatic 344

Electric Horn, How to Make 218

Electric Hydrogen Generator 54

Electric Illusion Box 135

Electric Indicator for a Wind Vane 348

Electric Lamp Experiment 53, 120, 131

Electric Lamp Sockets, Miniature, How to Make 270

Electric Lamps, Miniature 434

Electric Lamps, Testing 314

Electric Light Circuit, Experiments with 50

Electric Lighting, Miniature 104

Electric Lights,

Turned On and off from Different Places 205

Electric Lock 60, 110

Electric Lock for Sliding Door 89

Electric Lock, Simple 60

Electric Locomotive, Miniature, How to Make 165

Electric Motor 401

Electric Motor, Novel 395

Electric Motor, Small 214, 222, 345

Electric Pendant Switch, How to Make 310

Electric Piano, How to Make 247

Electric Plug, Homemade 430

Electric Postcard Projector 195

Electric Rat Exterminator 358

Electric Shock, To Give While Shaking Hands 133

Electric Shocker for Garbage Cans 94

Electric Stove. Homemade 31, 273

Electric Terminals, Varnish for 376

Electric Time Alarm 433

Electric Toaster, How to Make 37

Electric Walking Stick 413

Electric Wires, Flexible, Adjuster for 386

Electricity, To Discharge Toy Cannon by 59

Electricity; To Explode Powder with 53

Electricity, Writing with 74

Electrodeposition, Copies Made from Wax Molds by 157

Electrolytic Rectifier, How to Make 197

Electromagnet, Floating 152

Electroplating, Easy Method of 88

Electroscope, How to Make 103

Electrostatic Illumination 299

Emery Wheel Arbors, Washers for 359

Enameling a Bicycle Frame 385

Engine, Electric 276

Engine, Gasoline, How to Make 207

Engine, Model Steam 1

Engine, Steam, Made from Gas Pipe and Fittings 184

Engine, Toy Steam, How to Make 73

Engine, Turbine, How to Make 355

Equatorial, Homemade 204, 253

Equilibrator for Model Aeroplanes 11

Experiment, Center of Gravity 302

Experiment, Electric 377

Experiment, Electric Blue Light 47

Experiment, Heat and Expansion 124

Experiment, Phonograph 105

Experiment, Telephone 137

Experiment with a Vacuum 439

Experiment with Colored Electric Lamps 53

Experiment with Heat 134

Experiment with Incandescent Lamp 427

Experiment with Two Foot Rule and Hammer 106

Experiment, X-Ray 190

Experiments, Electric Lamp 120, 131

Experiments, Electrical, Reversing Switch for 92

Experiments with a Mirror 434

Experiments with Electric Light Circuit 50

Eye, Blind Spot in, To Find 129

Eyeglasses, Holding Firm 315

FF

an, Wooden, How to Make 332

Faucet Used as an Emergency Plug 343

Feed Box for Chickens 292

File, ChaIking 19

File, Sharpening Skates with 306

File Soft Metals, How to 406

Film Washing Trough 331

Films, Drying 412

Films, Frame for Drying 446

Filter, Simple and Effective 278

Filtering with a Small Funnel 25

Finger Mathematics 181

Finger, Removing Tight Fitting Ring from 361

Fingers, Protecting from Chemicals 283

Fire Alarm, Cheap 47

Fire Alarm, Electric, How to Make 430

Fire Alarm, Simple, How to Make 359

Fire Extinguisher, Homemade 351

Fire, Making with the Aid of Ice 338

Fire Screen, How to Make 82

Fire Screen. Leaded Glass 295

Fish Bait 152

Fish, One Way to Cook 206

Fishhook Box 379

Fishing through Ice, Signals for 10, 281, 380

Flag, Brass, How to Make 266

Flatiron Rest 19

Flier, Toy, How to Make 429

Flint Arrowhead, How to Make 23

Floor Polisher, Homemade 10, 350

Flour Sifter 7

Flower, Magic Growing 244

Flower Pot Stand 33

Flower Pots, Clay, Used for Bird Houses 277

Flower Pots, Window Shelf for 292

Flower Stand, Iron 353

Flowers, Cut, To Longer Preserve 419

Flowers. DecoloratIon of 288

Flush Valve, Repairing a Washer on 344

Fob, Shoestring Watch, How to Weave 285

Fob, Watch, How to Make 12, 223

Food. Keeping Cool in Camps 21

Football, Tying Knot for 133

Footrest, Child's, on an Ordinary Chair 453

Footwear, Drier for 229

Forks, Balancing on a Pin Head 427

Foundry Work at Home 95

Fountain for an Ordinary Pen 450

Fountain Pen, Ordinary Pen Used as 454

Fountain Pen Used as a Ruler 319

Fountain Pens, Leaking, Remedy for 390

Frame, Brass, in Repoussé 237

Frost, To Keep Windows Free from 354

Fuming of Oak 196

Funnel. Eggshell 93

Funnel, Filtering with 25

Funnel, Glass 412

Funnel, Horn Used as 7

Funnel, Temporary 275

Funnel, Venting a 318

Furnace, Brass, How to Build 115

Furnace, Door Opener for 83

Furnace Draft. Alarm Clock to Pull Up 107

Furnace Draft Opener, Automatic 102

Furnace, Electric, How to Make 48

Furnace Regulator, Electric, How to Make 388

Furniture, Cleaning 185

Furniture, Cleaning Leather on 13

Furniture, Drawing of 294

Furniture--Library Set in Pyro-Carving 407

Furniture--Rustic Seat 441

Furniture--Table, Mission Library, How to Make 141

Furniture, Tightening Cane In 230

G Galvanometer, Tangent, How to Make 150

Galvanoscope, How to Make 68

Game-Baseball, Playing with a Pocket Knife 250

Game-Bottle Pushers 409

Game, Chinese Outdoor 176

Game Played on the Ice 216

Garbage Can, Keeping Animals Away from 94

Gas Cannon 197

Gas Jet, Ringing a Bell by Touching 403

Gas Jet, Shade Holder Bracket for 419

Gas, To Light without Matches 394

Gasoline Burner for Model Work 55

Gasoline Engine, Homemade 207

Gauge, Carpenter's 19

Gauge, Drill 252

Gauge, Rain, How to Make 64

Gauntlets on Gloves 266

Gear Cutting Attachment for Small Lathes 167

Gear for Model Work 225

Gear Wheels, Small, To Make without a Lathe 46

Geissler Tube, How to Make 154

Glass Blowing and Forming 420

Glass Cleaning Solution 31

Glass, Effect of Radium on 116

Glass, Emergency Magnifying 305

Glass, Fire Screen, Leaded 295

Glass Funnel, Emergency 412

Glass, Ground, Imitating 294

Glass, Ground, Substitute 255

Glass Letters, Removing from Windows 319

Glass, Magnifying, How to Make 397

Glass, Photograph Prints Mounted on 231

Glass Plates, Piercing with a Spark Coil 426

Glass Tube, To Make a Bulb on 324

Glider, How to Make 171

Gloves, Cleaner for 302

Gloves, Gauntlets on 266

Gold Leaf, Covering Signals with 189

Gouge Used as a Bit 411

Gramophone Records, Cracked, Repairing 24

Grape Arbor, How to Build 73

Gravity Batteries, Why Fail 115

Gravity Experiment 302

Grease Stains, Removing from Book 230

Grease, To Remove from Machinery 216

Greasing the Front Wheels of an Automobile 320

Grills, Rope, How to Make 277

Ground Glass, Imitating 294

Guitar That Is Easy to Make 320

Gummed Paper, Substitute for 315

Gun Barrels, Bursting of 304

Gun, Toy, for Throwing Cardboard Squares 269

Gymnasium. Outdoor:

Part I-The Horizontal Bar 298

Part II-Parallel Bars 301

Part III-The Horse 303

H Hacksaw Blade, Knife Made from 293

Hammock, Barrel Stave 75

Hammock, How to Make 410

Hand Car Made of Pipe and Fittings 440

Hand, Magic Spirit 2

Handbag, Ladies', How to Make 213

Handbag, Removing 36 Cannon Balls from 256

Handkerchief Mended after Being Cut and Torn 198

Handkerchief Trick, Vanishing 319

Handle, Opening, for a Stamp Pad 23

Handle, Tying Paper Bag to Make 10

Hanger, Trousers, How to Make 143, 369

Hangers, Tool 453

Hardening Copper 206

Harmonograph, Line 34

Hat. To Hang on a Lead Pencil 133

Hatpins, Sealing Wax, How to Make 175

Hats, Felt, Packing Cut from 207

Heat and Expansion 124

Heat, Cardboard Spiral Turned by 226

Heat, Experiment with 134

Heat Regulator, Electric 344

Hectograph, Homemade 240, 326

Hinge, Broom Holder Made of 33

Hinges, Imitation Fancy Wings on 224

Hinges, Leather, Metal Covering for 41

Hole, Square, How to Bore 179

Hole, Threaded, Sizing 295

Holes, Boring In Cork 8

Holes, Circular. Cutting In Thin Sheet Metal 35

Holes, Different Shaped, Fitting Plug in 122

Horn, Electric, How to Make 218

Horn, Paper Phonograph, How to Make 71

Horn Used as Funnel 7

Horsepower of Small Motors, Finding 238

House, Building In a Tree Top 146

Hydrogen Generator, Constant Pressure 70

Hydrogen Generator, Small Electrical 54

Hygrometer, How to Make 71, 140

I

Ice Boat, How to Build 357

Ice Boating 382

Ice, Bottle Pushing on 409

Ice Chisel, Handy 61

Ice, Fish Signal for Fishing through 10

Ice, Fishing through 281

Ice, Game Played on 216

Ice, Making a Fire with the Aid of 338

Ice, Merry-Go-Round Whirl on 380

Ice, Peculiar Properties of 100

Ice, Signals for Fishing through 380

Ice Skates, Hollow Grinding 231

Ice Yacht. How to Build 307

Illusion, Balloon Ascension 300

Illusion Box, Electric 135

Illusion for Window Attraction 239

Illusion. Miniature "Pepper's Ghost" 52

Illusion, Roller Coaster 293

Illusion, Rolling Uphill 361

Illusions, Optical 74, 99, 130, 183,

206, 348, 364

Incandescent Lamp, Experiment with 427

Indian Clubs, Weighting 318

Indicator, Electric, for a Wind Vane 348

Induction Call, How to Make 138

Induction Coil, Lighting an Incandescent Lamp with 112

Induction Call, Small Medical, How to Make 63

Induction Coils, Circuit Breaker for 101

Induction Calls.

Mercury Make and Break Connections for 187

Induction Motor, Single Phase, How to Make 124

Ink Bottle Cork, Steel Pen Used in 117

Ink Spots, Removing 131

Inkstand, Ornamental Metal 315

Insulating Aluminum Wire 306

Insulating Cleats, Substitute for 348

Insulation, Removing from Wire 213

Interrupter, How to Make 51

Iodine Stains, Removing 425

Iron Castings, Putty for 269

Iron Flower Stand, Ornamental 353

Iron Polisher 286

Iron Rest for an Ironing Board 288

Iron Work, Ornamental, Easy Designs in 370

Ironing Board Stand, How to Make 17, 429

Irrigating with Tomato Cans 450

J

Jelly Making Stand 290

Jewelry, How to Clean 353

Jig Saw Puzzle, Photographic 361

Joint, Dovetail 29

Jump Spark Coil, How to Make 113

K Kennel, Concrete 23

Kennel Door, Automatic Closing 32

Kerosene, Used in Polishing Metals 364

Kettle, Spoon holder On 24

Kettles, Spoon Rest for 304

Key Forms, Preserving 454

Key, Removing from a Double String 179

Kiln, Pottery 62

Kitchen, Novelty Clock for 360

Kitchen Utensil--Baking Pan 13

Kitchen Utensil--Cherry Seeder 29

Kitchen Utensil--Chopping Board 19

Kitchen Utensil--Egg-Beater, How to Make 291

Kitchen Utensil--Elderberry Huller 323

Kitchen Utensil--Flour Sifter 7

Kitchen Utensil for Removing Pies from Pans 275

Kitchen Utensil--Homemade Toaster 139

Kitchen Utensil--Hot Dish Holder 7

Kitchen Utensil--Hot Plate Lifter 318

Kitchen Utensil--Jelly Making Stand 290

Kitchen Utensil--Knife Sharpener 379

Kitchen Utensil--Ladle and Strainer, Combined 302

Kitchen Utensil--Pot Cover Closet 16

Kitchen Utensil--Pot Covers, Homemade 297

Kitchen Utensil--Querl, Versatile 28

Kitchen Utensil--Salad Dressing Mixer 16

Kitchen Utensil--Spoon Rest for Kettles 24, 304

Kitchen Utensil--Tool for Lifting Can Covers 352

Kitchen Utensil--Vegetable Slicer 413

Kite Balancing Strings, Rubber Bands in 270

Kite, Box, How to Make 58

Kite, Chinese, How to Make and Fly 210

Kite Reel. Homemade 156

Kite, Tailless 458

Kites of Many Kinds and How to Make Them 391

Knife Blade, Worn, Repairing 228

Knife Made from Hacksaw Blade 293

Knife, Pocket, Playing Baseball with 250

Knife Sharpener, Kitchen 379

Knot, Magic 198

Knot Trick 167

Knot, Tying for Football 133

L

Ladle and Strainer, Combined 302

Ladle, Babbitt 264

Ladle for Melting Babbitt 173

Lamp, Acetylene, Lighting 401

Lamp, Arc 132

Lamp Cord, Flexible, Holder for 317

Lamp Cords, Flexible, Clasp for Holding 267

Lamp, Flash, How to Make 174

Lamp, Homemade Pocket 149

Lamp, Incandescent, Experiment with 427

Lamp, Incandescent, Lighting with an Induction Coil 112

Lamp, Quickly Made 329

Lamp Sockets, Miniature Electric. How to Make 270

Lamp Stand and Shade, How to Make 147

Lamps, Electric, Testing 314

Lamps, Miniature Electric 434

Lamps, To Make Burn Brightly 364

Lantern, Camper's Makeshift 266

Lantern, Darkroom, How to Make 14, 340

Lantern, Homemade 163

Lantern, Magic, How to Make 328

Lantern, Magic, Using Sun's Light in 251

Lantern Slide Masks, Cutting 245

Lantern Slides, Blueprint, How to Make 120

Lantern Slides, How to Make 127, 220

Lantern Slides, Tinted, How to Make 144

Lathe, Bench, Made of Pipe Fittings 316

Lathe, How to Make 86

Lathe, Making Gear Wheels without 46

Lathe, Wood Turning,

To Make Out of an Old Sewing Machine 403

Lathe Work, Calipering 258

Lathes, Small, Gear Cutting Attachment for 167

Laundry Device--Clothes Rack 14

Laundry Device--Clothesline, Double, Support for 318

Laundry Device--Iron Rest 19

Laundry Device--Iron Rest for an Ironing Board 288

Laundry Device--Ironing Board Stand 17, 429

Laundry Device--Sad Iron Polisher 286

Laundry Device--Washboard Holder 39

Lavatories, Sleeve Holders for 17

Lead Cannon, How to Make 338

Lead, Melting in Tissue Paper 185

Lead Pencil Rheostat, How to Make 145

Leaf, Photograph Printed on 362

Leather Card case, How to Make 350

Leather Hinges, Metal Coverings for 41

Leather on Furniture, Cleaning 13

Leather, Softening 140

Leather Spectacle Case, How to Make 228

Leather, Table Mat of, How to Make 286

Leather Work, Arts and Crafts 168

Letter Holder of Pierced Metal 294

Lettering on a Dark Ground, Paint for 170

Lettering with a Carpenter's Pencil 306

Letters, Glass, Removing from Windows 319

Levitation-Modern Stage Trick 459

Library Set in Pyro-Carving 407

Life Buoy, How to Make 432

Life preserver, Homemade 4

Light Gas without Matches, To 394

Light, Post or Swinging, Homemade 189

Light Trick, Invisible 251

Lightning Arrester, How to Make 122

Lightning, Photographing 124, 176

Lights, Turning On and Off from any Number of Places 310

Linoleum, How to Repair 273

Liquids-Splashes, Study of 164

Lock, Automatic 106

Lock, Electric 60, 110

Lock, Electric, for a Sliding Door 89

Lock, Homemade Pneumatic 65

Lock, Lubricating 151

Lock, Secret Door 6

Lock, Spring, Protection of 72

Lock, Trunk, How to Attach 134

Lock, Window 397

Locking Several Drawers with One Lock 314

Locomotive, Miniature Electric, How to Make 165

Log, To Cross Stream on 94

Lubricant for Wood Screws 137

Lubricate Sheet Metal, To 69

Lubricating a Lock 151

M

Machinery, To Remove Grease from 216

Magazine Binder, To Make 406

Magazine Clamp, How to Make 435

Magazine, How to Bind 40, 56

Magic Box Escape 7

Magic-Electric Illusion Box 135

Magic Lantern, Homemade 328

Magic, Old Time 167, 175, 176, 179,

193, 198, 234, 244,

251, 256, 427

Magic, Parlor, for Winter Evenings 90

Magic Spirit Hand 2

Magic-Violin, Making Spirits Play 295

Magnet for the Work Basket 292

Magnifying Glass, Emergency 305

Magnifying Glass, Homemade 397

Mahogany, Filler for 139

Mail Photographs, How to 312

Mail, Sending Coins by 287

Marble, Rolling 191

Massage, Electric Battery 144

Mat, Wrestling 330

Match, Chain Made from 311

Match Holder of Wood and Metal. How to Make 282

Match, How to Relight 444

Match Safe, Homemade 194

Mathematics, Finger 181

Mattresses, Handling 19

Measuring the Height of a Tree 376

Medical Induction Coil, How to Make 63

Mercury Make and Break

Connections for Induction Coils 187

Merry-Go-Round, How to Build 359

Merry-Go-Round Swing. How to Make 131

Merry-Go-Round Thriller 209

Merry-Go-Round Whirl on Ice 380

Metal Coverings for Leather Hinges 41

Metal Inkstand, Ornamental 315

Metal, Melting in the Flame of a Match 449

Metal, Pierced, Letter Holder of 294

Metal, Sheet, Sawing 291

Metal, Sheet, To Lubricate 69

Metal, Thin Sheet, Cutting Circular Holes in 35

Metal Whisk Broom Holder 221

Metals, Soft, How to File 406

Metals, Use of Kerosene In Polishing 364

Mice and Rats, Killing 293

Micrometer, Homemade 130

Microscope, Homemade 433

Microscope, Small, How to Make 408

Microscope without a Lens 76

Minnow Trap, How to Make 390

Mirror, Experiments with 434

Model Aeroplanes, Equilibrator for 11

Model Steam Engine 1

Model ,Steamboat 216

Model Work, Gasoline Burner for 55

Model Work, Gear for 225

Model Work, Three Way Cock for 50

Mold, Removing from Wallpaper 320

Monoplane Weather Vane 390

Moon, New, photographing 174

Motor, Battery, Controller and Reverse for 72

Motor, Battery, Reversing 405

Motor, Electric 214, 345, 395. 401

Motor, Reversing 105

Motor, Single Phase Induction 124

Motor, Small, Controller for 42

Motor, Small, How to Make 428

Motor, Water 66, 311

Motorcycle Drives Washing Machine 219

Motors, Small, Finding Horsepower of 238

Mouse Trap 112, 198, 293, 395, 450

Music Cabinet, How to Make 77

Music, Furnace, To Transmit to a Distance 107

NN

ail Holes, Filling 85

Nail, To Hang Heavy Things on 323

Nails, Iron Shingle, Life of 244

Necktie Holder, Homemade 369

Negatives. Broken, Restoring 377

Nickel, Polish for 112

Nostril, Child's, Removing Button from 237

Nut Cracking Block 290

Nuts, Tightening 155

Nutshell Photograph Novelty 24

OO

ak, Fuming of 196

Optical Illusion 74, 99, 130, 183,

206, 348, 364

Optical Top 69

Ornaments, Christmas Tree, Repairing 11

P

Packing, Cut from Felt Hats 207

Paint Brushes, Care of 267

Paint, Cause of Sagging 340

Paint for Lettering on a Dark Ground 170

Paint, Old, Removing 396

Paint, Sealing Up 363

Painting an Automobile 357

Painting Over Putty 136

Painting Yellow Pine 151

Paints, To Prevent from Crawling 55

Paints--Water Color Box 257

Pan, Baking 13

Paper Aeroplane, How to Make 329

Paper Bag, Tying to Make a Handle 10

Paper Bags, Use for 19

Paper Boat, How to Make 321

Paper, Gummed, Substitute for 315

Paper, Smoothing after Erasing 29

Paper, To Remove from Stamps 234

Paper under an Inverted Bottle, Withdrawing 33

Parachutes and Darts, Toy 352

Paraffin Wire, How to 161

Pen, Fountain, Ordinary Pen used as 450, 454

Pen, Fountain, Used as a Ruler 319

Pen, Steel, Used in Ink Bottle Cork 117

Pencil, Carpenter's, Lettering with 306

Pens, Corrosion of, Preventing 257

Pens, Leaking Fountain, Remedy for 390

“Pepper's Ghost" Illusion, Miniature 52

Percolator, Plant Food 258

Perfume Making Outfit 363

Phoneidoscope 407

Phonograph Experiment 105

Phonograph, Homemade 289

Phonograph Horn, Paper, How to Make 71

Phonograph Music, To Transmit to a Distance 107

Phonograph Record Cabinet 79, 433

Phonograph Reproducer, Relieving Weight of 245

Phonograph Spring. Broken, Repairing 316

Phonograph, Steadying 214

Phonograph, Thorns Used as Needles on 453

Photograph Letters, Spelling Names with 232

Photograph Mounts, Rough Alligator 424

Photograph Novelty, Nutshell 24

Photograph of a Clown Face 180

Photograph Postcards, Drying 453

Photograph Print Washing Tank 136

Photograph Printed on a Leaf 362

Photograph Prints, Drying Flat 38

Photograph Prints, Drying Without Curling 425

Photograph Prints, Mounting on Glass 231

Photograph Prints, Stretcher for Drying 275

Photographic Jig-Saw Puzzle 361

Photographing a Man in a Bottle 74

Photographing Lightning 124, 176

Photographing the New Moon 174

Photographing the North Star 443

Photographs, Freak, Making of 110, 440

Photographs, How to Mail 312

Photographs in Relief Easily Made 431

Photographs, Mounting in Plaster Plaques 287

Photographs on Watch Dials, Making 386

Photographs. To Print on Silk 396

Photography--Background Frame,

Take Down, How to Make 156

Photography--Changing Bag for Plate Holders 212

Photography--Copying Stand 149

Photography--Darkroom Lantern, How to Make 340

Photography--Darkroom, Small, Building 26

Photography--Developing Box, How to Make 220

Photography--Developing Tray 269

Photography--Developing Tray, Cracked, Repairing 260

Photography--Duplicator for Box Cameras 363

Photography--Enlarging from Life in the Camera 111, 117

Photography--Film Negatives, How to Keep 194

Photography--Film Washing Trough 331

Photography--Films, Drying 412

Photography--Films, Frame for Drying 446

Photography-Green Prints, Paper That Makes 157

Photography-Kits for the Camera 159

Photography-Negative Washer, Adjustable,

How to Make 143

Photography-Negatives, Broken, Restoring 377

Photography-Paper Stuck to Negative, To Remove 250

Photography-Pictures, Four, on One Plate 46

Photography-Printing Frame Stand 123

Photography-Prints,

Overexposed Developing, Saving 16

Photography-Proofs, Making before Negative Dries 33

Photography-Ray Filter, Substitute for 120

Photography-Toning Blue On Bromide and Platinum 31

Photography-Tripod Holder, Homemade 284

Piano, Electric, How to Make 247

Picture Frame, Etched Copper, How to Make 414

Pies, Removing from Pans 275

Pin Ball, How to Make 314

Pine, Yellow, Painting 151

Pipe and Fittings, Hand Car Made of 440

Pipe and Fittings, Hand Sled Made of 305

Pipe Fittings, Bench Lathe Made of 316

Pipe Fittings, Uses for 61

Pipe, Gas, and Fittings, Steam Engine Made from 184

Pipe Rack, Bent Iron 305

Planing Octagonal Wood Pieces, Block for 293

Plant Food Percolator 258

Plaques, Photo Silhouette Brass 217

Plaques, Plaster, Mounting Photos in 287

Plaster of Paris, How to Mix. 110

Plaster, Porous, Removing 41

Plate Lifter, Hot 318

Plug, Electric, How to Make 430

Plug, Emergency, Faucet Used as 343

Plug, Fitting in Different Shaped Holes 122

Plumb-Bob Line, Adjusting 229

Pocket Lamp, Homemade 149

Pockets for Spools of Thread 13

Polish, Aluminum 428

Polish for Nickel 112

Polish, Stove 133, 252

Polisher, Floor 10, 350

Polishing Cloths for Silver 32

Polishing Flat Surfaces 229

Polishing Metals, Use of Kerosene in 364

Porch Swing Chair 128

Portfolio, How to Make 225

Portieres, Japanese, How to Make 265

Postcard Holder, How to Make 363

Postcard Projector, Electric 195

Postcard Rack 25

Postcards, Photograph 453

Postcards, Unreadable, Key Card for Writing 35

Pot Cover, Closet 16

Pot Covers, Homemade 297

Pottery Kiln, Homemade 62

Poultry, Feed Box for 292

Poultry Feeder, Alarm Clock 79

Powder, to Explode with Electricity 53

Propelling Vehicle, How to Make 402

Pulley, Grooved, Made from Sheet Tin 412

Pump, Rotary, How to Make 81

Punch. Piercing, for Brass 19

Punching Bag Platform, Adjustable 267

Punt, Homemade 123

Purse, Coin, How to Make 354

Putty, Blacking 376

Putty for Iron Castings 269

Putty Grinder 191

Putty, Painting over 136

Putty, To Preserve 121

Puzzle, Checker Board 189, 233

Puzzle, Dovetail Joint 236

Puzzle, Photographic Jig Saw 361

Puzzle, Wire 378

Pyro-Carving, Library Set in 407

Q

Quartz Electrodes Used in Receiving

Wireless Messages 170

Querl, Versatile 28

Quilting Frames, Folding 258

R Rabbit Trap, Homemade 233

Rabbit Trap, Self Setting, How to Make 158

Rabbits, Trap for 395

Rack, Bent Iron Pipe 305

Rack, Clothes 14

Rack, Cup and Saucer 105

Rack for Displaying Coins 220

Rack, Postcard 25

Rack, Shoe 146

Radium Affects Glass 116

Rain Gauge, How to Make 64

Rat Exterminator, Electric 358

Rat Traps 290, 395

Rats and Mice, Killing 293

Rats, Keeping from a Chicken Coop 352

Ray Filter, Substitute for 120

Reel, Kite 156

Relay Made from an Electric Bell 94

Rheostat, Battery 80, 445

Rheostat, Lead Pencil, How to Make 145

Rheostat, Water 78

Rheostat, Water, How to Make 43

Ring, Finger, How to Make 39

Ring, Tight Fitting, Removing from Finger 361

Roller Coaster Illusion 293

Roller Skates, Homemade 386

Rope Grills, How to Make 277

Rubber Bands in Kite Balancing Strings 270

Rubber Stamps, How to Make 393

Rubber Tip for Chair Legs 229

Rule and Hammer, Experiment with 106

Ruler, Fountain Pen Used as 319

SS

ack Trick 251

Sail, To Attach to a Bicycle 425

Sailomobile, How to Make 326, 415

Sails, Boat, Revolving a Wheel with 152

Sails for Skaters 381

Salad Dressing, Aid in Mixing 16

Sandpaper, To Keep from Slipping 376

Saw, Bracket, How to Make 42

Saw, Homemade Scroll 11

Sawing Sheet Metal 389

Scissors, Removing from a Card 175

Scissors, Sharpening 419

Sconce, How to Make 325

Scoop, Shot 230

Screen, Fire, How to Make 82

Screw, Tightening with Lead 233

Screws, Inserting in Hardwood 318

Screws, Wood, Lubricant for 137

Sealing Wax Bent While Cold 61

Sealing Wax Hatpins, How to Make 175

Seals, Clear Wax Impressions from 450

Searchlight, Self Lighting Arc 9

Searchlight, Small, How to Make 336

Seat, Rustic 441

Settee, Homemade 385

Sewing Bag, How to Make 386

Sewing Machine,

Old Wood Turning Lathe Made Out of 403

Screw, To Hold on a Screwdriver 337

Scroll Saw, Homemade 11

Shade, Candle, How to Make 191

Shade, Fastening to a Roller 413

Shade Holder Bracket for a Gas Jet 419

Shaving Mug, Traveler's 9

Shelf Arrangement, Convenient 413

Shelf, Mission Bracket 39

Shelf, Turn Down, for a Small Space 144

Shelf, Window, for Flower Pots 292

Shellac Gum, Dissolving 124

Shocking Machine, Homemade 139

Shoe Horn, Substitute 25

Shoe Rack, Homemade 146

Shoe Scraper 413

Shoes, Skating, How to Make 158

Shoes, White, Cleaner for 239

Shoestring Watch Fob, How to Weave 285

Shot Scoop 230

Shower Bath, Homemade 15

Signals, Covering with Gold Leaf 189

Signals for Fishing Through Ice 10, 380

Silhouette Brass Plaques, Making 217

Silhouettes, How to Make 68

Silk, To Print Photographs on 396

Silver, Cleaning 305, 344

Silver Plating Outfit, Small, To Make 360

Silver, Polishing Cloths for 32

Sink or Bathtub Stopper, Substitute 429

Sizing a Threaded Hole 295

Skate Sharpener, Pocket, How to Make 166

Skater, Winged 381

Skates, Ice, Hollow Grinding 231

Skates, Roller, How to Make 386

Skates, Sharpening with a File 306

Skating Shoes, How to Make 158

Ski, Norwegian 384

Skidoo-Skidee Trick, Scientific Explanation of 162

Skis and Ski-Toboggans, Making 3

Sled, Barrel Stave 383

Sled, Bicycle 157

Sled, Bicycle Coasting, How to Make 231

Sled, Hand, Made of Pipe and Fittings 305

Sled, Toboggan, How to Make 44, 384

Sled, Yankee 408

Sleds, Coaster, Rocker Blocks on 223

Sleeve Bands, Bicycle Trouser Guards as 283

Sleeve Holders for Lavatories 17

Sleigh, Chair 383

Sleigh, Running 381

Sling, Crossbow and Arrow, How to Make 339

Snow House, Eskimo, How to Make 5

Snowshoes, Homemade 9

Solder with Low Melting Point 421

Soldering Clamps, Homemade 137

Soldering for the Amateur 38

Soldering Tool, Emergency 28

Spark Coil, Piercing Glass Plates with 426

Spectacle Case, Leather, How to Make 228

Spit Turned by Water Power 102

Splashes, Study of 164

Spine for Draftsman 406

Spoon Rest for Kettles 24, 304

Sport Skis and Ski-Toboggans, Making 3

Sports, Winter, Devices of 380

Spring Board for Swimmers 237

Spring, Curtain Roller, How to Tighten 79

Sprocket Wheels, Small, To Make 15

Stage, Miniature, How to Make 159

Stains, Iodine, Removing 425

Stains on Book Leaves, Removing 31

Stamp Pad, Handle for Opening 23

Stamps, To Remove Paper from 234

Star, North, Photographing 443

Static Machine, How to Make 177

Steam Calliope, How to Make 418

Steam Engine Made from Gas Pipe and Fittings 184

Steam Engine, Model 1

Steam Engine, Toy, How to Make 73

Steam Turbine, Homemade 20

Steamboat Model, Simple 216

Steel, Chisel, Annealing 362

Steering Wheel, Heated 441

Stereograph, Principles of 186

Stick Pin, How to Make 164

Still, Homemade 426

Still, Simple, How to Make 170

Stool, Camp, How to Make 222

Storage Battery, Small, How to Make 121

Stove, Electric, How to Make 31, 273

Stove Polish 133, 252

Stovepipe, Cleaner for 230

Stoves, Cleaning 155

Strainer and Ladle, Combined 302

Stream, Crossing on a Log 94

Street Car Line, Imitation, How to Build 374

Sundial, How to Lay Out 261

Sunlight, Using in Magic Lantern 251

Swimmers, Spring Board for 237

Swimming Pool, Concrete 178

Swing and Turning Rings Combined 283

Swing Chair, Porch 128

Swing, Homemade Round 192

Swing, Merry-Go-Round, How to Make 131

Swing Seat, Child's Homemade 276

Switch, Automatic Time 80

Switch, Battery 99

Switch, Electric Pendant, How to Make 310

Switch, Reversing for Electrical Experiments 92

Switch, Simple, for Reversing a Current 111

T

Table, Lifting 99

Table Mat of Leather, How to Make 286

Table, Mission Library, How to Make 141

Table Pads, Asbestos 212

Talking Machine Reproducer, Relieving Weight of 245

Tank, Small, Aerating Water in 241

Target, Illuminated 291

Tarnish, Removing 17

Tea Tray, Cheesebox Cover 18

Teeter Board, Revolving 297

Telegraph and Telephone Line, Combination 332

Telegraph Codes 422

Telegraph Instrument and Buzzer, How to Make 334

Telegraph Key and Sounder, How to Make 76

Telegraph Key, Homemade 21, 283

Telegraph Line, One Wire 78

Telegraph, Line, Simple Open Circuit 59

Telephone and Telegraph Line, Combination 332

Telephone Experiment 137

Telephone Receiver, Homemade 55, 353

Telephone,

Receiving Wireless Telegraph Messages with 92

Telephone, Singing 75

Telephone Transmitter, Homemade 398

Telephone, Wireless, How to Make 432

Telescope, How to Make 108

Telescope Stand and Holder 218

Telescope, Water, How to Make 410

Tent, Bell, How to Make 190

Tent, Lawn, Quickly Made 398

Tents, Weatherproofing for 389

Thermo Battery, How to Make 59

Thermo-Electric Battery, How to Make 140

Thermometer, Air 152

Thermometer Back in Etched Copper. To Make. 246

Thermostat. Small, How to Construct 455

Thorns Used as Needles In a Phonograph 453

Thread, Cutting Inside Glass Bottle 179

Thread Spools, Pockets for 13

Time Alarm, Electric 433

Time Switch, Automatic 80

Tin, Sheet, Grooved Pulley Made from 412

Tinware, Rustproof 347

Tire Repair, Emergency 33

Toaster, Electric, How to Make 37

Toaster, Homemade 139

Toboggan Sled, How to Make 44, 384

Toboggans and Skis, Making 3

Tool, Cutting Point of 278

Tool for Lifting Can Covers 352

Tool Hangers 453

Tool, Soldering 28

Top, Austrian 12

Top, Optical 69

Toy, Child's Rolling, How to Make 224

Toy Darts and Parachutes 352

Toy Flier, How to Make 429

Toy-Skidoo-Skidee, Scientific Explanation of 162