Page:Popular Science Monthly Volume 88.djvu/22

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How the War Is Being Fought 193-209

Why a Bullet Seldom Shoots Straight 244

A Queer Adventure in War 247

The New Aeroplane Gun 336

How the War Is Being Fought 354-367

Train and Tent Baths of the Russian Army 370

Will Germany Live on Sewage? 380

Recruiting Britain's Army with Motor-Trucks.

Motion Pictures, Mirrors and Brass Bands. . . 387

The Cost of the War 398

Why Cotton Is Contraband of War 412

A Barbed-Wire-Proof Fabric 485

A Difficult Journey for An Army Tractor 490

Decoy Targets for Zeppelins 512

How the War Is Being Fought 514-527

The Allies' Losses 540

An Adjustable Crutch 558

Effects of the War on German Industries 567

My Adventures As a Spy 590

INDUSTRIAL CHEMISTRY

Bread Without Grain Flour 1 70

Hard-Pressed Germany Invents New Foods 237

Paper from Grass 248

INVENTIONS TO MAKE LIFE EASY

Burnishing with the Sewing-Machine 436

Cigar Tip Protector of Many Uses 436

Head-Guard for Alley-Boys 436

VIore Accurate Calipers 436

Trapping Mice in a Milk Bottle 436

Tricking Fish with Electric Minnows 436

Bicycle Frame Holds a Tire Pump 437

Collapsible Millinery for Traveling 437

A Cutter for Fiber Phonograph Needles 437

Holding Meat While Carving 437

A New Kind of Pin-Cushion 437

Preventing Furniture from Chipping Walls 437

Can Maidenly Modesty Ask for More? 438

Conquering the Obstinate Oyster 438

An Improved Potato Masher ■ ■. ''^^

One Motion of the Handles Works These Scissors'

Blades Twice 438

A Paper Milk-Bottle with a Window 438

Salt and Pepper Shaker 438

Light Your Umbrella if You Are Afraid to Go Home

in the Dark 594

Signaling to the Driver Behind You 594

Pen Rack Removes Ink from Nib. 594

A Freight Hook of Many Uses 594

Do Not Wring Your Mop by Hand 594

A Fountain Tooth Brush 594

Adjusting a Shower Spray's Angle 595

Both Direct and Indirect Lighting 595

A Coffee Percolator in Your Cup 595

Blow Up Your Shoes with Air 595

A Vacuum Cleaner Dust-Pan 595

A Spring Cover for Milk Bottles 595

This Ice-Shaver Saves Muscle 596

A Foot-Propelled Motor Skate 596

A Tooth-Brush Which Fits Your Finger 596

A Policeman's Club Which Is Also a Gun 596

Chalking Billiard Cues Mechanically 596

Parting Thick Tresses 596

Adjustable Footrest 812

A Buzz-Saw Safety Razor 850

Fooling the Pickpocket 850

Straw Hat Insurance 850

A Tray to Hide Unsightly Cigar Ashes ■.■ ^^^

A Clean Way of Removing Pens from 1 heir

Holders 857

Learning Arithmetic with a Woman's Invention. . 869

A Purse Powder-Holder 884

Combined Eye-Shade and Program 905

The Fruit Picker's Sleeve-Chute 914

A Mitten-Duster 914

Muffler for Bowling-Pins 914

Packing the Things You Never Can Cram into

Your Suitcase 914

Safety-First for Window-Cleaners 914

Small Electric Heater _ 914

Down with the Portcullis, and Your Fis'i Is Caught 91 5

Improved Pocket-Knife Punch 915

A Magnifying Needle-Threader 913

Mattress Handles Lighten Housework 913

A Perfume-Wafting Fan 915

Telephone-Mouthpiece Deadens OutsiJe Sounds. . 915

Convenient Holder for Toilet Articles 691

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Cord Reel Is Telephone Convenience 916

The Mechanical Fly Swatter 916

An Umbrella with an Electric Fan 916

A Sanitary Butter Dish 916

Two Kitchen Forks in One 916

MECHANICAL ENGINEERING

A Machine that Chews Money 77

Using the Sun's Heat to Heat Water 79

Immense Watei Wheels Which Lift Their Own

Water. 82

A Windmill Which Always Turns in the Same

Direction 167

Steam-Driven Models Made by a Handless Me- chanic 1 68

This Belt Breaks All Records 1 76

What a Little Engine Can Do 212

A Machine to Pull Up Old Telegraph Poles 223

Sprinkling Streets with the Aid of an Old Fort. . . . 228 The Sculptor's Use of a Pneumatic Chisel for

Artistic Carving 229

Testing a Hack Saw's Strength 258

A Machine to Clean Blackboard Erasers 268

Sharpening Drills by Air 336

A Giant Grinder Which Goes to Its Work 338

The Hobby-Horse Turned Into a Swing 340

Lifting a Wagon to Dump Its Load 340

Spending Money by Machinery 346

Cleaning New York Streets with Modern Me- chanical Appliances 378

A Machine Which Climbs Poles 381

For Squeamish Fowl-Killers 409

Saving the Asphyxiated with a New Air-Pump. . 416

A Movable Storehouse Elevator 418

The Biggest Cast-iron Pipes in the World 487

Saves Work of the Book-Gatherer 489

Dumping a Whole Carload of Coal at a Time. . . 491

Machine Fills Cracks in Pavements 491

Suspension Bridges of Wire Fencing 495

Midget Crane Has Giant Ability 507

Riveting Without Rivets 509

Giant Ladle for Molten Cinders 542

A Magnetic Machine Which Saves Waste Iron,. 584 Climbing Steel Poles with the Aid of Special Shoes 644 Revolving Floor Puts a New Thrill Into the Dance 646 Doing Away with the Submarine's Storage Battery 654

An Auger That Works'Anywhere 658

Machine Shovels Faster Than Forty Men 661

Three Tools in One 668

A Machine Which Plugs Knot-Holes 730

Lifting Made Easy 732

Novel Box-Opening Knife 734

Saw Guard with a Clean Record 738

Pipe Bending — A Growing Industry 738

Wagon-Loader Resembles Gold Dredge 741

Eliminating Pottery Waste 742

A Locomotive Apron Lifter 764

An Automatic Pressure-Gage Alarm 781

Avoiding Groundings in Running Metal Molding

from Chandelier Outlets 785

Giant Press Used in Making Shrapnel Shells 815

Water Rises to Three Hundred Feet in New York

Sky Scrapers 833

How Record-Breaking Girders Were Handled. . . 863 A New Era in Water Power Begun at the Henry

Ford Farms 864

Niagara's New Air Route 858

MODERN MEDICINE AND SURGERY AND INDUSTRIAL HYGIENE

The Electromagnet in War 27

Why a Woman Can Outtalk a Man 53

X-Ray Finds Safety Pin in Baby's Throat 54

Hammering Spine to Cure Sick Heart. . . ; 55

Mercury Poisoning and Deafness — the Price of a

Derby Hat 68

A Walking Leg Bath 73

Hospital Work on the Firing Line 80

Why There Are Defective Babies and Monsters. . 83

An International Test for Vision ... 112

Does Your Child Suck Its Thumb? 334

Mending Bones with Rivets and Wires 337

Sleep in Hot Water to Rest Your Nerves 381

The Peril of the Fur Coat 383

Babies in Glass Cases 390

A Rowing Bath • 486

Making a Throat Examination Behind a Glass

Screen 497

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