Page:Popular Science Monthly Volume 89.djvu/8

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Timing an Automobile Race 753
Backing an Automobile into a Moving Garage 755
Constructing a Sidecar for a Bicycle or Motorcycle 765
Fillers for the Pedal Slots of Automobiles 783
Lubricating Automobile Spring Shackles and Bolts 783
Estimating the Speed of Passing Automobiles 784
Making a Sediment Pocket in Feed Line to Carburetor 784
Caring for Storage Batteries on Automobiles 792
Novel Method of Drive for Light Cycle-Cars 806
Timing Automobile Speed Demons 806
A Wonderful New Glass Which Cannot Be Shattered 811
An Automatic Safety Fender Sets the Brakes 836
A Floating Road for Automobiles 864
The Intelligent Motor Milk-Wagon 869
Twelve Cylinders or Six in One Car 872
Plowing Snow with Your Automobile 882
Automobiles, Motor-Trucks and Accessories 888 — 891
An Automobile Pump Drive from the Rear Wheel 895
The Tiniest Motorcycle to Be Used in the Army 896
Preaching the Gospel from an Automobile 906
Tank Trucks as Tenders to Submarines 906
Testing the Strength of an Ostrich 907
A British Motor-Bus Run on Coal Gas 912
A Motor-Driven Brake 914
Wire Wheels for Automobiles 915
Combination Lamp and Horn for the Motorcycle 920
Automobile Carbureter for Heavy Fuel Oils 936
Your Mainsail and the Wind 49
Forty Miles an Hour on the Water 83
How to Run a Motor-Boat 112
Asphyxiating a Fire with Sulphur 884
Producing the Coldest Cold 916
A Quickly Made Silver-Platng Powder 937
How to Handle Sulphuric Acid with Safety 945
The Destruction of the Exposition City 8-11
A Ticklish Moment 29
"Ironing Out" Earthquake Wrinkles in San Francisco 31
An Inverted Steam Hammer for Drawing Piles 53
Saving Hours in Handling New York Subway Dirt 54
An Excavator Which Walks 61
Electrifying the Clam-Shell Bucket 87
Making Water Pump Itself 98
A Damaged Lock Gate Repaired by Its Own Water 234
Lowering a Bridge Without Blocking the Traffic 240
Uncle Sam's New Dam at Elephant Butte 259
A Substantial Cableway Built from Scrap Material 327
The Senators' Subway 328
Bagging Rivet Heads with a Butterfly Net 333
Blowing Concrete into Place 411
Safeguarding the Sand Blaster 418
Building a Bank Around a Bank 485
Holding the Hudson at Bay 537
Road Construction Facts by the Wayside 544
Solving New York's Freight Problem 546
Ten Millions to Save Four Miles 553
Transforming a Beauty Spot into a Public Utility 574
A Bridge Five and One Half Miles Long 583
Strenuous Search for Durable Roads in a St. Louis Park 672
Giant Slabs of Marble to Commemorate Abraham Lincoln 689
Meerschaum as a Building Material in Spain 689
Boring Straight by Photography 720
Quebec's Disastrous Bridge 728
Cleaning Sewers from the Street 838
The Old-Fashioned Heavy Paving-Block Gives Place to a New Form 844
Taking the Temperature of a Dam 866
Welding Soft Metal to Hard 17
The Voice Typewriter 65
An Exciter for Electroscopes 135
Interference of Lighting Circuit by Static Electricity 135
Rejuvenating Electric Lamps 135
A Wet Battery from a Dry One 135
Electric Striking Mechanism for Mission Clocks 137
An Electrically Operated Device for Lighting Gas 141
How to Make an Attachment-Plug 142
A Model Electrical Hammer 142
How to Make an Electric Shaving-Mug 143
Testing Electric Lamps Quickly 144
Using Cartridge Shells for Electrical Contacts 144
A Hoop with a Guiding Hub 152
Perfuming and Cooling the Air with An Electric Fan 175
The King of New York s Lighting Spectacles 177
A Tool for Buffing, Drilling and Grinding Metal Surfaces 192
Toying with High Tension Currents 248
A Home-Made Edison Battery 276
A Clever Window Display 277
Five Examples of Alarm Work 279
Rectifying Alternating Current 283
Making an Electric Fire Alarm 284
Cutting Glass-Tubing by Electricity 311
A One-Eyed Mechanical Stenograptier 335
Why You Could Not Get Your Man on the Wire 371
An Electric Motor-Chair 412
A Convenient Arrangement for Turning on the Hall Light 442
Wiring the Ford for Magneto and Battery 442
A Simple Way to Construct a Ten-Ampere Shunt 443
Controlling Temperature and Humidity at the Same Time 444
Electric Substitute for the Latch-key 444
Making an Induction Coil 446
Magnet Winder 446
Dry Cells and Their Voltage 446
Utilizing Broken Marble Pieces 446
How to Rid Your Yard of Cats 447
To Stop the Milk Thief 447
A Simple Primary Coil 452
A Heat-Resisting Socket for High Wattage Lamps 511
Pocket-Flashlight Distress-Signals 520
A Hand-Magnet That Lifts Fifteen Times Its Own Weight 536
The Czar of the Power-House 555
A New Electric Cloth-Cutter for Small Shops 564
The Electrical Scrub-Woman — Brainless but Efficient 566
Small Electric Pump for Draining Seepage from a Cellar 567
A Voting Machine for Congress 582
Flood Lighting Niagara 584
The Nic:ht Eyes of the Coast Artillery 586
A Warning to Fishermen 590
A Photographic Printing-Box for Use with Electric Current 601
A Simple Tracing Method for Electrical Draftsmen 606
Tapping Field Telephone Wires 622
Tracing Initials on Tools with Electricity 632
Saving the Picture Show with a New Rheostat 633
A Combination Front and Back Door Alarm-Bell 634
Electric Burner for Making Storage-Battery Connections 634
To Change a Gas Lamp into an Electric Light 635
Lighting an Oil-Stove with an Alarm-Clock 635
A Simple Electrical Device for Purifying Water 638
Lifting Street Cars with a Powerful Electric Hoist 673
Electric Hand Lantern Costs Less than a Kerosene Burner - 681
Electric Ranges Are Becoming Popular 681
Electrolytic Extraction of Gold from Black Sand 680
Look Out Perhaps the Man You're Talking to Wears a Detectaphone 687
Protecting the Telephone Operator 706
Telegraphing Through the Ocean 711
Toys That Obey Your Voice 718
Miniature Magnet-Propelled Ships 757
Hearing Your Voice Through Your Bones 142
Manhole Ventilated with Electric Fan 748
Reducing the Furnace Man to a Mere Push-Button 751
A Magic Wand Which Changes Cold Water into Hot Almost Instantly 752
The Electric Thief-Catcher 756
How Electricity and Temperature Affect a Watch 761
A Hallowe'en Chamber of Horrors 777
An Improvised Coil Winder for Electrical Apparatus 787
A Home-Made Fuse for a Small Battery Current 793
Amateur Trench FJcctricians 794
A Danger Signal Used to Direct Attention Overhead Perils 829