INDEX TO VOLUME 91
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The Unbeaten "Constitution" 242
The Largest Model of a Ship Under a Roof 252
Disguised Submarines 265
Giant Mushroom Anchors for Holding Buoys .... 265
Practical Motor-Boating 275
Toy Compressed Air Boats 297
A Paddle- Wheel Canoe 393
A New Life-Saving Platform 408
Practical Motor-Boating 426
Making the River Drive a Ferry Boat •. . . 432
The Graveyard of Ships That Passed in the Night . 520 The Life-Preserver Is More Important Than Meals
Aboard Ship 521
Boats That Travel on Land and Water 525
She Launches Seaplanes and She's Unsinkable .... 529
A Houseboat of Marble 538
Even a Battleship Would Sink If It Were Not
Cleaned 554
Shall We Build Concrete Ships? 556
She Was Torpedoed but Her Cargo Plugged the Hole 569
Signaling Storms to Mariners 582
A Leopard Ship of the Sea 645
What's Wrong with the Submarine 682
Cast-Steel Ships 690
A Bungalow Takes a Sail Across San Francisco Bay 751
A Thriving Fishing Village That Floats 760
Raising Sunken Ships with Collapsible Air Bags . . 829 Boat Carries Engine in Its Fin 872
SPORTS AND PASTIMES
Dickory, Dickory, Dock, the Mouse Ran Up the —
Clock 29
A Refrigerator Basket for the Picnic Outing 31
A Many-Sided Bathing Cap 69
This Board Will Help You Learn to Swim 85
A Vast Fortune Is Chewed Up Every Year 103
Land Skates with Brakes and Pneumatic Tires ... 109 Rafting the Rapids on the Rio Grande in Jamaica 1 10
A Rein-Spur 190
Scraping a Baseball Bat 214
An Automatic Bait-Casting Fishing Rod 226
The Speed of a Baseball 227
This Spoon Hook Won't Tangle 240
Conquering Your Cramps Under Water 250
With an Axe and Two Springboards He Chops His
Way Up a 120-Foot Tree 253
A Hook and Bait Carrier ( 326
Shooting Snapping Turtles 368
A New Game of Pocket Billiards 388
Anchoring the Fisherman to the Fishing Pier 392
An Amusement Park in a Vacant Lot 412
Hitching a Fishing Line to a Kite 412
Detecting the Undertow Before It Catches the
Swimmer 43 I
Pulling and Pushing to Make the Swing Go 524
Lowering the Life-Boats by Means of Gear- Operated Davits 533
Put These Webbed Gloves on and Swim Like a Duck 532 Maltreating a Water Bottle to Test Its Strength. . 536 Making a Mule Push and Pull at the Same Time . 586 A Water-Cooling and Purifying Pipe for the Fastid- ious Smoker 590
The Suitcase Talking-Machine 644
The American Boy's Wagon 670
Looping the Loop in a Rocking Chair 673
Fishing for Herring with a Windmill 724
Making the Swimming Pool Attractive 725
Playing Patriotic Tunes on the Air-Brake 737
Making Comfortable Quarters for the Pet Snake . . 829
Eskimos of Alaska Held a Reindeer Fair 837
The Pull-Motor 842
Watch-Case Revolver 843
Mechanical Toys 862-63
A Christmas Tree Stand 874
A Jungle in a School- Yard 880
The Home-Made Ice Sleds of the Chinese Boys. .881
A Toy Gun for the Pacifists 883
Novel Color Mixer for Teaching Color Effects ... 888 A Billiard Table That Folds Up When Not in Use . 909
A Mouse Spins Cotton Thread 912
Winning an Athlete's Laurels 943
MISCELLANY
The Largest Straw Hat in the World Is Yours If It
Fits 24
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Is Curled Hair Becoming Stylish in Japan? 26
These Magnifying Glasses Are Worn Like Spec- tacles ...;.. 29
Making a Second "Self" for Dressmaking Purposes 48
Ingenious Toys Made by Soldiers 57
A Hair-Drying Frame 61
A German Medal Commemorating the Sinking of
the Lusitania 66
. A Safety Chain for Your Pocketbook 69
Platinum Is Too Useful to Be Used as Jewelry. . . 69 A Twelve-Year-Old Inventor's Combination Um- brella and Rain-Cape 91
The Straw Hat for Storms 95
Giving Convicts a Real Chance 98
This Really Happens More Often Than You'd
Think 101
Five Hundred Indian Languages 165
Mechanical Hair-Parter 165
A Tight Cord Fastener 166
Foiling the Pickpocket and Protecting Your Watch 167
Use Your Natural Arm If a Craftsman 187
A Helmet for Smoke-Filled Rooms 1 99
A Chinese Composing Room 202
Wire Hood for Protection Against Mosquitoes .... 202
Teaching the Blind How to Write on Straight Lines 208
Deadening Noise by Pasting Tar Paper on Floors 228
A Pencil with Nine Good Points 228
A Novel Change Receptacle 233
An Open- Air Barber Shop '. 235
Wild Goats Live on the Roof 236
Cold Water Pipes to Cool a Room 246
Another Improvement on the Policeman's "Billy" 247
A Fortune from Old Razor Blades 248
Fifty-five Packages of Chewing Gum for Everybody 249
Wave Your Cane Flag 249
An Accommodating Church — It Goes Wherever
It Is Wanted 260
If Your Parrot Thirsts, Give Him a Drink 260
A Buttonhole Watch 261
An Automatic Revolver No Bigger Than Your
Watch 262
The Rate at Which Food Prices Have Advanced . . 265
The Dumb Turk. He Smokes Cigarettes 268
The Outdoor Trap for the Anti-Fly Campaign . . 271
Holding the Whetstone Where It Is Needed 273
Going to College to Learn Wood Graining 274
The "Swat the Fly" Campaign Is On 274
Collecting Old Newspapers 280
A Paper-Disk Flipper 329
A Kitchen on Wheels 348
Washing for Gold in the Guianas 349
Risking Lives in Government Surveys 352
Cardboard Covers for School Desks 352
Eat More Fruit and Drink Less Water 353
Using a Dozen Different Inks Without Mistake. . 354
Making Mud-Highways 362
Food for the Taking 374
The Broomstick Periscope 378
Why Are Skirts So Short? 378
The Biggest Bible 384
An Encounter Between Fire and Ice 389
A Heel Which Wears Straight 394
The Candle Industry Still Flourishes 397
Float Made of Raisins 397
Self-Operated Cradle 400
A Fire Hose with Ten Nozzles 408
A Waving Flag for Your Buttonhole 409
This Device Won't Let Your Hat Blow Off 411
Measuring the Wear on Roads 413
Goats' Milk Saves Babies' Lives 416
A "Safety First" Device for the Bill Folder 417
Experts Punch the Time Clock for Slow Stevedores 418
A Shrewd Marketwoman Made of Figs 418
What's Become of the Breweries? 423
A New Clock Scheme for the Daylight Saving Plan 432
The Umbrella Hat 484
From Soup to Nuts . 514
Work the Typewriter Standing or Sitting. 516
Each Salesman Has His Own Telephone in This
Grocery 516
A Pencil-Pen Without Wood, Rubber or Graphic 520
Two Ties in One . •. 522
It Holds and Presses Your Tie at the Same Time. . 522
In Japan the Barber Cleans His Patron's Ears. . . 524 It Takes About 150 Pounds Pressure to Break an
Egg 525
What Makes a Man a Criminal 526
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