Page:Popular Science Monthly Volume 92.djvu/8

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INDEX TO VOLUME 92

ii

CHEMISTRY Page
Tobacco as a Cleanser 67
Making Paper from Grass 113
"German Silver" Is Silver in Name Only 117
Mixture to Make a Strong Waterproof Glue 126
Explosives Are Simpler Than They Seem 166
Softening Water by Filtering It 236
Killing the Boll-Weevil with a Deadly Gas 261
Fire-Fighting Suit of Asbestos Cloth 325
Invention of New Steel Like Military Victory 325
Unlimited Heat— But How Use It? 344
America Needs Potash 362
What Imitation Leather Is 380
Varnish and Varnishing 402
We Are Making Our Own Indigo Now 400
Honey of Crapes 432
This Regulator Will Keep Your Apparatus at a Constant Temperature 569
Wood that Gives a Wonderful Fluorescence to Water 576
Detecting Glucose in Jellies, Jams and Kindred Confections 577
Wash In the By-Products of Garbage 582
Kerosene Can be "Cracked" to Produce Gasoline 593
A Chemical Preparation to Preserve Cut Flowers 601
Making Animals Transparent 678
The Making of Watches 693
Why Bricks Are Made with Straw 703
Chemicals and Machines Supplant Men in This War 744
Laundrymen and War Conditions 754
Less Risk in Kerosene Than Gasoline 758
The Process of Making Parchment Paper 806
Making Soap from Table Refuse 837
Inexpensive Aluminum Polish 923

CIVIL ENGINEERING
A Roller for Concrete Roads 51
Waste Boot Leather for Road Making 66
Launching a Bridge-Pier Caisson 89
Spraying Asphalt by Hand 101
Building Eiffel Towers in the Philippine Jungle 204
A Bridge Having a Single Row of Supporting Posts 229
Rolling Roads with Gaspipe 379
What Is Mean Sea Level? 408
Trapeze Artists Among Telephone Poles 414
Cost of Placing Roadway Stone Reduced by Simple Spreader 522

ELECTRICITY
If You Value Your Life Be Careful with Electricity 4
Clap! Let There Be Light 26
An Electric Blanket 33
Warming an Aquarium Electrically 65
Light Your Gas with Electricity 95
The Electric Floor-Scrubber 96
One Man with an Electric Monorail Does the Work of Ten Men with Trucks 108
A Homemade Electric Lantern for a Dry-Battery Cell 149
Electrical Devices and How They Work 151
An Electric Torch Made of Bottle and Bichromate Solution I 56
All Kinds of Commotion at Theater: Electric Signs Cause It 203
Removing a Fuse from the High-Tension Mains Without Danger of Shock 229
At Last! A Noiseless Telephone 247
A New Portable Electric Light for Manhole Work 248
The Electric Stevedore Distributes the Mail 265
Drawing Twenty Shades at Once 274
A Trolley Hoist for Handling Coal 278
Constructing a Dry Cell Which Can Be Renewed 308
How to Make an Electric Laboratory Furnace 309
Finding the Polarity of Electric Wires with a Potato 310
Spark Plug Tester with an Inclosed Spark Gap 310
Electrical Devices and How They Work 311
Making a Wet Battery from Ordinary Dry Cells 312
The Normal Running Temperature of Electric Machines 316
The Secret of Those Curly Locks 323
Pushbutton Lamp-Switch 364
The Thief's "Hands-Up!" Is Answered by the Telephone's "Help!" 424
Look Into the Mysteries of Mold with an Electric Trowel 431
Playing Chimes by Electricity 435
An Electric Lantern Which Will Stand Rough Use 440
Drying Shoes with Heat from an Electric Globe 455
How to Make a Flashlight of Dazzling Brilliancy 466
An Electric Bell Signal to Indicate Falling Snow 467
Electric Toaster to Operate on Dry Batteries 468
Electrical Devices and How They Work 469
The Sleeper Must Get Up to Stop the Alarm 471
Making Small Generators from Telephone Magnetos 472
An Improved Design for a Grounding Switch 474
Electric Blasting Without Blasting Machine 487
Teaching High School Pupils How to Read the Gas and Electric Meters 504
Electricity Makes the Winding of Bandages Easier 548
Oh, Henry — What Makes Those Things Go 'Round 553
Electricians Should Wear Straw Hats at Work 582
Electric Alarm Signal for Transmission Ropes 627
Changing the Tone of an Electric Bell by Sawing It 628
Tightening Electric Wires Under Wood Cleats 628
Electrical Devices and How They Work 629
A Small Storage Battery Made with a Sponge 631
A Keyless Electric Lock for Use on a Panel Door 640
Don't Let Your Baby Suck the Telephone Cord! 670
An Electrical Cooker for the Kitchenette 673
Cleaning Billiard Tables by an Electric Brush 685
Staircase Burglar Alarm 688
New Uses for Blue Electric Bulbs 696
Fish at Night with an Electric Light on Your Line 735
Static Electricity Drawn from Paper by Alternating Charge 748
Telephone and Telegraph Service Held Up 753
An Electrically-Heated Inhaler 792
Ignition Hookup for Use on Automobile Circuits 792
Electrical Devices and How They Work 793
Interesting and Artistic Electric Battery Tester 795
Permanent Base for Small Battery Switches 800
Opera Hat with Enclosed Electric Light for a Sign 800
Electric Sparks Peel the Tomatoes 897
Saving Time in Insulating Electric Cables 918
What Is the "Dead" Lamp on a Series Circuit? 920
Cleat for Holding Temporary Electric Wires 947
An Electrically Driven Toy Tank That Goes "Over the Top" 947
Durable Terminals for Electrical Conductor Cords 948
Shocking Device That Works on the Commercial Current 948
Locating and Repairing Short-Circuited Armature Coils 948
Electrical Devices and How They Work 949
Combined Electric Night-Bell and Flash-Light 952
Self-Translating Telegraph Line for Amateurs 952
Interesting Method of Learning the Telegraph Code 954
Home-Made Electric Furnace for Heating with Arc Light 955
Simple Way of Cutting Mica V-Rings to Fit on an Armature 955
Holding Clip for Making Tests on Spark Plugs 956
Controlling an Oil Cup with an Electromagnet 956

HOUSEKEEPING MADE EASY
The Bachelor's Coffee Brewer 7
Cut Your Ice Silently and Easily with a Needle 12
Sharpen Your Own Shears and Save Your Time and Temper 27
Housekeeping Made Easy 40-41
Household Appliances 53
A New-Old Cooker 68
One Movement, and Up Goes This Sturdy Collapsible Ironing Board 88
A Needle That You Can Easily Thread in the Dark 99
Here's a Quick Device for Extracting Corks 109
Turn the Switch and You'll Have All the Hot Water You Will Need 110
You Can Attach This Humidifier to Your Radiator 117
Cook a Breakfast for Six on One Fourth of a Cent 224
A Coal Stove Within Your Furnace 228
The Bag Within the Garbage Can 253
Housekeeping Made Easy 258-259
Adjustable Chair for the Bathtub 327
Housekeeping Made Easy 360-361
Sleeping in Your Library Table 587
A Metal Bottle-Cover That Never Wears Out 407
Pasteurizer and Ice-Box Combined 420
Adjustable Player-Piano Seat and Record Holder 431
Cook with Acetylene on the Farm 434
Safety Bottle for Poisons 504
Housekeeping Made Easy 522-523