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