Page
The Wreck of the Sumner 497
The Terror of the Sea . 546
Trolley Cars on Water 560
The Acetylene Life Buoy. It Blows Itself Up .... 583
Torpedo-Boat Destroyers 693
A Non-Sinkable Lifeboat 696
Hiding a Ship in Smoke 704
Fighting Crafts Cost a Fortune to Build 725
What's a Dreadnought? And Its Purpose? 729
The Battle Cruiser of the Future 730
The Torpedo Boat Destroyer 826
Six Acres of Coal Floating on the Mississippi. . . . 836
A Giant Life-Raft 850
Wooden Ships of 3.000 Tons 860
A Sunken Ship That Earned a Fortune 884
Freighting a Steamer by the Marine Elevator .... 908
Locating a Sunken Ship 920
SPORTS AND PASTIMES
Prince, the Only Ice-Skating Bear 4i
Riding a Bicycle on Your Stomach 41
Salmon Fishing in the Columbia 99
A Coasting Bob 139
An Electric Alarm Signal for the Fisherman 1 49
The "Why" of a Golf Ball's Flight ■ 186
Is This the Secret of Ventriloquy? 209
Bicycling for the Blind 217
Making Designs with a Magnet 217
Playing Checkers with Electric Lights 246
Interesting Winter Games 295
A Trip to Sugar Loaf Mountain 334
The Latest Rival of the "Punch and Judy" Show. 348 A "Preparedness" Sleeping Outfit for the Camp . . 361
A Machine for Teaching Golf 371
A Broncho for the Surf 389
The Stars and Stripes Forever! .' 390
Muskrat Hunting 394
A Butting Match Between Mechanical Pugilists. . 432 A Doll Which Is Abused for the Sake of Exercise . . . 432
The Game of the Pot of Gold 457
A Golf Ball's Washing Machine 406
Fighting the Terrible Devil Fish 483
The Book Theater 487
Sun Glasses for the Baseball Muffer 487
A New Press for the Tennis Racket 512
Freaks of Nature — And How to Make Them 516
A See-Saw Swing 557
Shoot Your Deer from Horseback 567
Sliding Down a Mountain on a Summer Sled 584
Training Harvard's Crew on an Artificial River 598 New Clay Pigeons That Break with a Single Shot . 602
A Cover and Press for the Tennis Racket 684
Flying Kites for Prizes 743
New York City's Indoor Golf Course 747
Playing Baseball with Rifles 751
A Practical Shotgun Sight for the Trap-Shooter . . 753
Coaxing Birds to Your Garden 756
Winning an Athlete's Laurels 781
A Clever Fishing Device 828
A Vanity Case for the Bather 856
An Aid to the One-Eyed Shooter 865
A Bicycle Mounted on Rollers 866
Catching Minnows for Bait in a Basket-Net 883
How to Take a Drink and Eat Wiiile Fishing 888
Decorating Pottery with Sealing Wax 889
Toy Clowns That Perform Acrobatic Feats 889
At What Age Does the Athlete Begin to Lose
Form? 896
Ball Throwing with a Sling 902
Winning an Athlete's Laurels 941
WAR PROBLEMS
The Superdreadnought Pennsylvania 17
Protecting a Battleship Against Torpedoes 81
What the First Aerial Bombs Were Made of 165
Firing a Big Artillery Gun 212
Rubber Instead of Glass Eyes for Wounded Soldiers 244 How French Air Fighters Handle Bombs and
Machine Guns 256
The Biggest Battle Cruiser 268
Discovering the Spy's Secrets by Means of a
Lemonade Bath 349
Evaporated Foods, an Outcome of the War 373
The Greatest Game in the World 407
Why Zeppelins Are Frightful ; 518
The Torpedo Car — A Super-Trench Destroyer .... 526
��Page
If Helmets Are Good, Why Not Armor? 530
A Non-Recoil Gun 532
Defending Our Coast 543
Playing at Battle 544
The Terror of the Sea 546
New York State Protects Her Strategic Points. 553-554
Teaching Our Soldiers How to Fight 561
The Convertible Knapsack 568
Turning Out Helmets for the French 569
Why Navies Have Small Armored Cruisers 577
War Time Uses of Wood 590
Foiling Torpedoes with Whirling Plates 643
A Honk! Honk! in the Trenches Means "Don Your
Gas Masks!" 664
The Story of the Machine Gun 666
A Toy Field Hospital for an Object Lesson 673
Army Cooks Prefer Kerosene to Wood for Fuel. . 679
How Aviators Land Safely at Night 680
"Bullet-Proof Rooms. Two Dollars Per Day" 683
Submarine Mines 689
Torpedoing from an Airplane 690
Torpedo-Boat Destroyers 693
The Single-Man Tank 702
Hiding a Ship in Smoke 704
The I nside of a Tank 712
Fighting Crafts Cost a Fortune to Build 725
The Battle Cruiser of the Future 730
Combining the Periscope with the Military Rifle. . 740
Getting Rid of Vermin in the Trenches 742
Wireless in the Trenches 795
Laying Telegraph Cables Under Fire 803
An Observation-Tower Car for the Army 837
Making Your Watch Tell the Truth 849
An Upside-Down Watch '. 856
"Going to Sea" in an Armory 857
A Modern Armor 858
Ten Thousand Medical Officers Are Needed for a
Million-Man Army 886
Stopping Mexican Bullets with Sand-Filled Cans 891
A Novel Bicycle Ejierciser for the Wounded 896
The War Costs Great Britain the Cost of a Panama
Canal Every Thirteen Days 897
What the Zeppelins Have Cost London in Acci- dents and Deaths 912
The Favorite Weapon of Assault 917
MISCELLANY
A Sheltered Feeding for the Birds 28
Man Becomes a Beast in Hand-to-Hand Conflict. 30 Giving a Personal Touch to Circulars and Form
Letters 31
Putting the Bicycle to Work 31
A Periscope Attached to Field-Glasses 32
An Obliging Cigar-Lighter Which Feeds Lighted
Matches 32
How I Judge Men 33
A Practical Fuel-Oil Burner 40
A Pneumatic E,xterminator 44
A Bullet-Riddled Dispatch-Rider's Car 46
A Giant Hobby-Horse 47
Preventing Cats and Squirrels from Climbing Trees 49
Reforming Bad Boys with Egg-Shells 49
A Brush for the Phonograph Needle 54
How They Wash Clothes with Wind 60
Rope Riches of the Philippines 61
Combination Christmas Tree-Holder, Telephone
Stand, and Tabouret 64
An Eight-Hour Clock for the Eight-Hour Day.. 65
Adjustable Stilts 68
A Wrestling Dummy 68
A Bungalow Fire Station 70
A Carload Featherbed of Scrap Tin 70
Getting the Most Out of Mining Mules 70
Safeguarding the Nation's Money 76
Cooling Off a River with Its Own Water 80
Felling a Stack of Steel by Means of a Flame .... 80 A Steam Tractor Makes a Theater Audience
Conifortable 83
A Device for Extracting Rusty Pen-Points 95
A Box-Testing Machine 95
Is That Ten Dollar Bill Good or Bad? 97
Providing Your Pen with an Ink Well 98
Freakish Accidents 100
A Friend of the Traveling Shoe Salesman Must
Have Invented This .- ■ • • ' ' ^
The Problem of the Sloping Shoulder Solved with a
Plumb-Line 113
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