Page:Popular Science Monthly Volume 92.djvu/12

 INDEX TO VOLUME 92

��r>*ATURAL SCIENCE Page

A Horn of Natural Rock 27

Unaccommodating Wells 29

No Steam Heat for This House. It Would Melt. 34 What Make* the Tumbler Pigeon Tumble in Flight? 43

The Mole Is a Gormandizer 49

A Cauliflower of Ice 73

A Poisoned Sea 73

Glaze: An Old Winter Foe with a New Name ... 81 The Slacker Hen — She Lays Curious but Uneatable

Eggs 118

Why Monkeys Use Their Fists 166

Nature in the Role of Wood Designer 179

How Floating Particles of Dust Cause a Fire 185

A Whale Which Strains Its Food Through Whiskers 188

Nature Herself Branded These Cattle 193

A Well That Supplies Two Kinds of Water 201

Why the Horse Is an Aristocrat 273

What Was the Type of Dog That Went Into Noah's

Ark? 347

Forest Skyscrapers 347

Deep-Sea Fish with Lanterns 366

Magnetized Birds? Another Explanation of Ac- curate Migratory Flight 368

The Wise Potato. It Refused to Produce Un- necessary Seeds 426

Yawning Fishes 440

1 ntroducins; the Moropus 507

The Tick Was the First Insect Disease-Carrier to

Get Caught 517

If You Don't Smell AH Right in a Bee-Hive.

You're Kicked Out 537

Forest Skyscrapers 555

Why Tanks are Giant Caterpillars 556

"Educated " Ants the Latest in Animal Training. 580 Supplying Water to the Thirsty Rootlets of

Potted Plants 581

Good and Bad Mushrooms Hard to Distinguish. . 586

Trees Stunted by the Wind 664

Even a Parasite May Prove to Be Useful to Man 67 I

Have You Ever Found a Thing Like That 672

Why Isn't It Hotter Nearer the Sun? 700

Insects Which Eat Tobacco 707

WhenlsaFeather Not a Feather? When I t's a Hair 726 How a Woman Makes Money by Putting Nature

Under Glass 838

Nature Carves a Queer Snow-Cave in the Cali- fornia Sierras 865

An Alibi for the Bee in the Orchard 870

Something to Lose Sleep Over — Can Fish Hear? . . 886

The Queer Forms of Some Flies 886

The Secret of the Wily Snake's Sinuous Glide 892

PHOTOGRAPHY AND MOTION PICTURES

Doll* Become Screen Idols 36

With Thi* Darkroom Develop Your Photographs

on the Spot 43

Photographing Your Measure 70

Enlist Your Camera Lens 72

A Masking Device Which Brings the Whole Picture

in the Photograph 106

How a ^Photograph Can Tell the Efficiency of a

Pumping Machine 120

A Portable Cabinet for the Photographer 124

Races in the Motion Pictures 165

Forcing an Auto into the Air with a Stream of

Water 193

How the Cavalcade Approaches Behind the Scenes 200 Home Portraiture for Snakes — Try It on a Rattler 201 How Many Tree-Top "Close-Ups" Are Taken. . 224

Mixing Colors on the Screen 226

Motion Pictures Fool the Law of Gravity 254

A Homemade Focusinff Hood for a Hand Camera. 282

A New Use for Fogged Photographic Plates 316

Introducing the Inflatable Speecn-Sausage 326

Screen Thrill* Are Cheaper Now 348

Motion-Picture* Twice the Regular Size 390

Motion Radiography 554

A Motorcycle a* a Vibrationle** Tripod 555

The Motion-Picture Scene-Shifter Enter* the War 588 Seen from Above. Thi* Picture. Would Look

Different 594

The Bottle Break*, but Not the Head of the Villain 682 l.njoy Your Snap*h'>t* Better by Enlarging Them 684

I'holographing a Historical Parade 702

Real Light* for the Auto* in Motion Picture* .... 742 Remarkable Photograph uf an Actual Battle Scene 747

��Page Protecting Aviator's Camera Bellows from Wind 750 A Reflex Attachment for Use on a Hand Camera 766 A Derby Hat Used in Place of Camera Tripod .... 868

No Double Elxposures with 1 his Device 893

Photographing Holland in California 912

Holding Photographic Plates from Tray Bottom. . 942 Making Photographic Timer Out of Watch 945

PHYSICS

What Causes the Singing of Telegraph Wire*? ... 33

Making Millions Out of Bubbles 82

Clearing Out Sewer Pipes with Compressed Air. . . 102

To Remove Liquid Don't Lift It 119

PICTURE PAGES

Preparing the Powder Sacks for 16-lnch Guns 8-9

Tobacco Growing lO-I I

The World's Most Cherished Medals 12-13

Making Candles 14-15

Taking Motion Pictures in the Canadian Rockies. 16-17

Making Over the Physically Unfit 18-19

Making Dolls 20-2 1

What Happens to the Food We Eat? 22

Is Your Brain Completely Furnished? 23

Making Rope 168-169

Growing Gourds in New Jersey 1 70

English Jackies Go to School 171

If You Haven't Chosen Your Vocation, Here Are a

Few Suggestions for You I 72-1 73

Reading Flag Signals from the Sky 174

How Her Jewelled Comb Is Made 175

Sound Bombs Soar into Air to Warn London of Air

Raids 176-177

England's Heroines Are in Her Munition Plants. . . 178

Nature in the Role of Wood Designer I 79

Cliff Dwellers 180-181

Making Isinglass 182-183

Various Types of German Bombs 328—329

Packing Sardines 330

Armless but Not Helpless 33 1

Mountaineering in the Alps 332

Made in Winter's Open Air Studio 334

Quaint Sampans of the Far East 335

Exercisers for Wounded Soldiers 336-337

Sir William Tritton, Inventor of the "Tank " 338

Training Radio Men at Our Aviation Schools 339

The Right Way to Vulcanize a Tire 340-341

Where a Ford Has Never Traveled 488-489

Raising Money for the Red Cross 490-491

Women Conductors for Street Railways 492

Some Aspect -of the Work of Our Signal Corps. 493

Interesting Examples of Camouflage 494-495

Making Cigarettes 496-497

New York's Food Scouts 498

New York Coroner's Office 499

The Girl Brickmakers of England 500-501

Gathering Oysters in Winter 502

Shelter Bridges Near Dixmude 503

Airplane Caught in Wireless Mast 648

Launching Hydroairplanes from Battleships 649

An Armory Converted Into Military Hospital 650-651

Sacred Animals of the East 652

The Lack of Coal and Food in Paris 633

A New Military Litter 654-635

The Hog Island Shipyards 656-657

Ancient Chinese Apartment Houses 638

A Crypt Decorated with Human Bones 639

The Doves of War 660 66 I

Mechanical Appliances Used in Surgery 662-663

Teaching Our Soldiers the Hand - to - Hand

Struggle 808-809

Woodenware and Hardware Hat* 810-81 1

Sterilizing Wagons for the Army. . . : 812

The Army's Portable Laundry 813

Patriotic Emblems 814-81 3

Five Million Pleasure C»r». • Total of 120 Million

Horse-Power 816-817

Making Artificial Limbs for Soldier* 818-819

Making Game Birds Pay 820-821

Airplane Picture of German Line* 822-823

PRACTICAL WORKERS' DEPARTMENT

An Attachment for an Auto to Make a Wrecke*. 121 A Guard or Ink Shield for a Penholder 122

A Liquid to Clean Silverware Without Damage. . . 122

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