Page:Popular Science Monthly Volume 88.djvu/20

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 * An Emergency Tire Made Simply of Rope || align=right | 587
 * Vulcanizing Tires with Exhaust Heat || align=right | 593
 * A Trouble-Proof Tire || align=right | 593
 * An Oil Cup for Auto Springs || align=right | 593
 * An Anti-Clogging Oil-Gage || align=right | 593
 * A New Way of Driving a Bicycle with a Motor . . || align=right | 702
 * Converting an Automobile into an Apartment. . . . || align=right | 719
 * The Chair Car—the Latest Development in Stage-coaches || align=right | 729
 * A Tomahawk Grease Gun || align=right | 731
 * Device Prevents Automobiles from Being Stolen. . || align=right | 731
 * How a Second-Hand Automobile Made a Railroad Pay || align=right | 732
 * New Automobile Alarm Calls for Help || align=right | 753
 * This Grease Cup Keeps Your Hands Clean || align=right | 755
 * Converting a Motor-Cycle Into a Tricycle || align=right | 757
 * To Keep Your Foot Always on the Accelerator Pedal . . . || align=right | 757
 * A Lamp for the Motorist's Glove || align=right | 758
 * Improving Automobile Springs || align=right | 768
 * Hints to the Motor-Cyclist || align=right | 770
 * Fools Automobile Thieves || align=right | 780
 * An Automobile-Bed for the Tourist || align=right | 870
 * A New Ford Folding Bed || align=right | 870
 * Some Ingenious New Accessories for the Touring Car || align=right | 870
 * A Glass Hood for Autonnobiles || align=right | 871
 * A Handy Automobile Grease-Gun || align=right | 871
 * Rain Protector for Automobile Wind-Shield || align=right | 871
 * An Electric Automobile Built Like a Drop of Oil || align=right | 896
 * What Shall We Do for Gasoline? || align=right | 904
 * Curing a Noisy Automobile Hood || align=right | 917
 * colspan=2 align=center | BOATING
 * The Trolley-Car Boat for Bathers || align=right | 725
 * A Wheel-barrow for Canoes || align=right | 744
 * The Ozark Float-Boat || align=right | 747
 * How to Build and Sail a Small Boat || align=right | 765
 * Navigating a River Boat by Sound || align=right | 905
 * How to Build and Sail a Small Boat || align=right | 929
 * colspan=2 align=center | CIVIL ENGINEERING
 * Twelve Million Dollars for Twenty Minutes Train Time || align=right | 7
 * An Excavation for a Road Leaves House on Brink || align=right | 17
 * Two Bridges with but One Approach || align=right | 20
 * A Vast Tank with a Park on Top || align=right | 20
 * A Really Greater New York || align=right | 60
 * The Longest Pipe Line in America || align=right | 93
 * A Gigantic Steel Bridge-Beam || align=right | 166
 * Niagara on Tap || align=right | 180
 * Lifting a House Over Trees: Sentiment vs. Cost. . || align=right | 247
 * The Giant Task of the Subway Diggers || align=right | 326
 * Three Slender Wires Form a Bridge || align=right | 342
 * A Circular Bridge on Stilts || align=right | 377
 * The Bridge that Telephones Built || align=right | 403
 * An Elevated Road that Tried to Outstrip a Town. || align=right | 421
 * Digging Away the Slides at Panama || align=right | 492
 * Amputating Pittsburgh's "Hump" || align=right | 532
 * Workmen Shot from Tunnel Through the Bed of a River || align=right | 643
 * Rocking a Three-Hundred Foot Tower with Your Hand || align=right | 645
 * Spraying Concrete || align=right | 665
 * New York's Submarine Subway and How It Was Built || align=right | 705
 * Making Money Out of Waste Land with a Stream of Water || align=right | 720
 * Panama's Locks Guarded by Chains || align=right | 745
 * Using Ice to Lower Heavy Stones || align=right | 774
 * A Hint for Draftsmen || align=right | 793
 * colspan=2 align=center | ELECTRICITY
 * Band Conceits from an Electric Light Bulb || align=right | 71
 * Brightening the Baby's Path || align=right | 92
 * Saving Steps at Target Practice || align=right | 95
 * An Electric Flat Iron Float || align=right | 95
 * Electric Heater Resembles Desk Telephones || align=right | 104
 * Winter Uses for the Electric Fan || align=right | 109
 * Electric Toaster Eliminates Burnt Fingers || align=right | 110
 * Electric Candles on a Nine-Story Birthday Cake. . || align=right | 169
 * A Sleeping Nest with an Electric Elevator || align=right | 185
 * Signal Lights for Traveling Cranes || align=right | 228
 * Power from a Floating Water Power Plant || align=right | 234
 * Testing Shrapnel Shells in Electric Ovens || align=right | 254
 * Something Is Wrong with This Unemotional Phonograph Fire Alarm || align=right | 337
 * How to Photograph Electrical Sparks || align=right | 348
 * Trimming Veneered Edges by Electricity || align=right | 348
 * An Owl Darkens the Town || align=right | 369
 * Typewriting Eight Telegrams Over a Single Wire. || align=right | 374
 * Can Battery Explosions on Battery Submarines Be Prevented? || align=right | 394
 * A Top That Never Stops Spinning || align=right | 401
 * What Makes an Electric Lamp-Bulb Glow? || align=right | 401
 * The Electric Dog and How He Obeys His Flash-lamp Master || align=right | 426
 * Finding the Positive Wire || align=right | 454
 * How to Prolong the Life of Battery Cells || align=right | 454
 * Springless Electric Bell || align=right | 454
 * A Simple but Powerful Arc-Light || align=right | 455
 * Making a Master Vibrator for Automobiles || align=right | 461
 * Electric Door-Opener for a Garage || align=right | 470
 * A Metal-Vapor Light That Is White || align=right | 529
 * Telegraphing with the Telephone || align=right | 563
 * Detecting Flaws in Steel by X-Ray || align=right | 577
 * Storage Battery Hints || align=right | 652
 * An Electric Soldering Iron || align=right | 626
 * Construction of Unipolar Dynamos || align=right | 624
 * The Electromagnetic Hand for Armless Veterans. || align=right | 657
 * An Electrically-Lighted Clock || align=right | 699
 * A Socket Protecting Knot || align=right | 731
 * An Electric Fan Suspended by Its Own Wire || align=right | 736
 * Lamp Resistance for Charging Storage Batteries || align=right | 781
 * Recharging Worn-out Dry Batteries || align=right | 781
 * Automatic Dead-End Switch || align=right | 785
 * Making Coils of Resistance Wire for a Small Electric Stove || align=right | 788
 * How to Make an Electric Horn || align=right | 788
 * Repairing a Burnt-Out Fuse || align=right | 788
 * Changing a Telegraph Sounder Into a Relay || align=right | 789
 * Substituting a Flashlight for a Door Bell || align=right | 789
 * Telephone Line Test Clips Easily Made || align=right | 789
 * A Current Reverser for Small Motors || align=right | 789
 * Making Over the Lighting System || align=right | 795
 * Healing Magic of the Electric Arc || align=right | 818
 * Illuminating a Highway with Pockets of Light. . || align=right | 905
 * Bird Protection for Electric Lines || align=right | 907
 * Making a Simple but Efficient Flasher || align=right | 939
 * For Those Midnight Serenaders || align=right | 939
 * A Musical Electric Door-Bell || align=right | 940
 * Connecting Dissimilar Telephone Lines || align=right | 941
 * Connecting Wires with Tinfoil || align=right | 941
 * An Efficient Spark-Plug Tester || align=right | 941
 * The "Ideal" Battery . || align=right | 945
 * The Construction of an Automatic Battery Circuit-Breaker || align=right | 947
 * How to Make a Rural Mail Box Alarm || align=right | 947
 * Electrical Lighting Device for the Gas-Range. . . . || align=right | 948
 * An Electric Weather-Vane Indicator || align=right | 948
 * colspan=2 align=center | GEOLOGY
 * The Devil's Post Pile || align=right | 178
 * Natural Cannonballs || align=right | 178
 * Natural Stadium Which Holds One Hundred and Thirty Thousand || align=right | 248
 * What Wind and Rain Can Do || align=right | 530
 * Fake Gypsum Claims || align=right | 573
 * Rock Folded Like Cardboard || align=right | 814
 * Strange Mineral Spring Deposit in a Nevada Desert || align=right | 897
 * A Strange Spongelike Rock || align=right | 903
 * Are Metals Alive? || align=right | 912
 * colspan=2 align=center | GAMES, PUZZLES. AND OUTDOOR SPORTS
 * Ice Dynamited So Yale Crew May Row || align=right | 658
 * Playing Golf on the Roof || align=right | 669
 * Ten-Net—An Indoor-Outdoor Game || align=right | 705
 * Outdoors Yet Indoors || align=right | 726
 * colspan=2 align=center | HOME CRAFTSMAN
 * An Extra Drainboard for the Kitchen Sink || align=right | 113
 * To Lengthen the Life of a Necktie || align=right | 113
 * Wood Box Arrangement Saves Many Steps from the Dining-Room || align=right | 113
 * Broom Closet Utilizing Waste Space || align=right | 114
 * A Cheap Septic Tank || align=right | 114
 * A Craftsman Desk Chair || align=right | 115
 * A Serviceable Hot Water Heater Which Can Be Made at Home || align=right | 118
 * How a Course Dinner Can Be Served Without a Maid || align=right | 118
 * Connecting Block for Bell Wires || align=right | 119
 * }
 * How to Photograph Electrical Sparks || align=right | 348
 * Trimming Veneered Edges by Electricity || align=right | 348
 * An Owl Darkens the Town || align=right | 369
 * Typewriting Eight Telegrams Over a Single Wire. || align=right | 374
 * Can Battery Explosions on Battery Submarines Be Prevented? || align=right | 394
 * A Top That Never Stops Spinning || align=right | 401
 * What Makes an Electric Lamp-Bulb Glow? || align=right | 401
 * The Electric Dog and How He Obeys His Flash-lamp Master || align=right | 426
 * Finding the Positive Wire || align=right | 454
 * How to Prolong the Life of Battery Cells || align=right | 454
 * Springless Electric Bell || align=right | 454
 * A Simple but Powerful Arc-Light || align=right | 455
 * Making a Master Vibrator for Automobiles || align=right | 461
 * Electric Door-Opener for a Garage || align=right | 470
 * A Metal-Vapor Light That Is White || align=right | 529
 * Telegraphing with the Telephone || align=right | 563
 * Detecting Flaws in Steel by X-Ray || align=right | 577
 * Storage Battery Hints || align=right | 652
 * An Electric Soldering Iron || align=right | 626
 * Construction of Unipolar Dynamos || align=right | 624
 * The Electromagnetic Hand for Armless Veterans. || align=right | 657
 * An Electrically-Lighted Clock || align=right | 699
 * A Socket Protecting Knot || align=right | 731
 * An Electric Fan Suspended by Its Own Wire || align=right | 736
 * Lamp Resistance for Charging Storage Batteries || align=right | 781
 * Recharging Worn-out Dry Batteries || align=right | 781
 * Automatic Dead-End Switch || align=right | 785
 * Making Coils of Resistance Wire for a Small Electric Stove || align=right | 788
 * How to Make an Electric Horn || align=right | 788
 * Repairing a Burnt-Out Fuse || align=right | 788
 * Changing a Telegraph Sounder Into a Relay || align=right | 789
 * Substituting a Flashlight for a Door Bell || align=right | 789
 * Telephone Line Test Clips Easily Made || align=right | 789
 * A Current Reverser for Small Motors || align=right | 789
 * Making Over the Lighting System || align=right | 795
 * Healing Magic of the Electric Arc || align=right | 818
 * Illuminating a Highway with Pockets of Light. . || align=right | 905
 * Bird Protection for Electric Lines || align=right | 907
 * Making a Simple but Efficient Flasher || align=right | 939
 * For Those Midnight Serenaders || align=right | 939
 * A Musical Electric Door-Bell || align=right | 940
 * Connecting Dissimilar Telephone Lines || align=right | 941
 * Connecting Wires with Tinfoil || align=right | 941
 * An Efficient Spark-Plug Tester || align=right | 941
 * The "Ideal" Battery . || align=right | 945
 * The Construction of an Automatic Battery Circuit-Breaker || align=right | 947
 * How to Make a Rural Mail Box Alarm || align=right | 947
 * Electrical Lighting Device for the Gas-Range. . . . || align=right | 948
 * An Electric Weather-Vane Indicator || align=right | 948
 * colspan=2 align=center | GEOLOGY
 * The Devil's Post Pile || align=right | 178
 * Natural Cannonballs || align=right | 178
 * Natural Stadium Which Holds One Hundred and Thirty Thousand || align=right | 248
 * What Wind and Rain Can Do || align=right | 530
 * Fake Gypsum Claims || align=right | 573
 * Rock Folded Like Cardboard || align=right | 814
 * Strange Mineral Spring Deposit in a Nevada Desert || align=right | 897
 * A Strange Spongelike Rock || align=right | 903
 * Are Metals Alive? || align=right | 912
 * colspan=2 align=center | GAMES, PUZZLES. AND OUTDOOR SPORTS
 * Ice Dynamited So Yale Crew May Row || align=right | 658
 * Playing Golf on the Roof || align=right | 669
 * Ten-Net—An Indoor-Outdoor Game || align=right | 705
 * Outdoors Yet Indoors || align=right | 726
 * colspan=2 align=center | HOME CRAFTSMAN
 * An Extra Drainboard for the Kitchen Sink || align=right | 113
 * To Lengthen the Life of a Necktie || align=right | 113
 * Wood Box Arrangement Saves Many Steps from the Dining-Room || align=right | 113
 * Broom Closet Utilizing Waste Space || align=right | 114
 * A Cheap Septic Tank || align=right | 114
 * A Craftsman Desk Chair || align=right | 115
 * A Serviceable Hot Water Heater Which Can Be Made at Home || align=right | 118
 * How a Course Dinner Can Be Served Without a Maid || align=right | 118
 * Connecting Block for Bell Wires || align=right | 119
 * }
 * Making a Simple but Efficient Flasher || align=right | 939
 * For Those Midnight Serenaders || align=right | 939
 * A Musical Electric Door-Bell || align=right | 940
 * Connecting Dissimilar Telephone Lines || align=right | 941
 * Connecting Wires with Tinfoil || align=right | 941
 * An Efficient Spark-Plug Tester || align=right | 941
 * The "Ideal" Battery . || align=right | 945
 * The Construction of an Automatic Battery Circuit-Breaker || align=right | 947
 * How to Make a Rural Mail Box Alarm || align=right | 947
 * Electrical Lighting Device for the Gas-Range. . . . || align=right | 948
 * An Electric Weather-Vane Indicator || align=right | 948
 * colspan=2 align=center | GEOLOGY
 * The Devil's Post Pile || align=right | 178
 * Natural Cannonballs || align=right | 178
 * Natural Stadium Which Holds One Hundred and Thirty Thousand || align=right | 248
 * What Wind and Rain Can Do || align=right | 530
 * Fake Gypsum Claims || align=right | 573
 * Rock Folded Like Cardboard || align=right | 814
 * Strange Mineral Spring Deposit in a Nevada Desert || align=right | 897
 * A Strange Spongelike Rock || align=right | 903
 * Are Metals Alive? || align=right | 912
 * colspan=2 align=center | GAMES, PUZZLES. AND OUTDOOR SPORTS
 * Ice Dynamited So Yale Crew May Row || align=right | 658
 * Playing Golf on the Roof || align=right | 669
 * Ten-Net—An Indoor-Outdoor Game || align=right | 705
 * Outdoors Yet Indoors || align=right | 726
 * colspan=2 align=center | HOME CRAFTSMAN
 * An Extra Drainboard for the Kitchen Sink || align=right | 113
 * To Lengthen the Life of a Necktie || align=right | 113
 * Wood Box Arrangement Saves Many Steps from the Dining-Room || align=right | 113
 * Broom Closet Utilizing Waste Space || align=right | 114
 * A Cheap Septic Tank || align=right | 114
 * A Craftsman Desk Chair || align=right | 115
 * A Serviceable Hot Water Heater Which Can Be Made at Home || align=right | 118
 * How a Course Dinner Can Be Served Without a Maid || align=right | 118
 * Connecting Block for Bell Wires || align=right | 119
 * }
 * Strange Mineral Spring Deposit in a Nevada Desert || align=right | 897
 * A Strange Spongelike Rock || align=right | 903
 * Are Metals Alive? || align=right | 912
 * colspan=2 align=center | GAMES, PUZZLES. AND OUTDOOR SPORTS
 * Ice Dynamited So Yale Crew May Row || align=right | 658
 * Playing Golf on the Roof || align=right | 669
 * Ten-Net—An Indoor-Outdoor Game || align=right | 705
 * Outdoors Yet Indoors || align=right | 726
 * colspan=2 align=center | HOME CRAFTSMAN
 * An Extra Drainboard for the Kitchen Sink || align=right | 113
 * To Lengthen the Life of a Necktie || align=right | 113
 * Wood Box Arrangement Saves Many Steps from the Dining-Room || align=right | 113
 * Broom Closet Utilizing Waste Space || align=right | 114
 * A Cheap Septic Tank || align=right | 114
 * A Craftsman Desk Chair || align=right | 115
 * A Serviceable Hot Water Heater Which Can Be Made at Home || align=right | 118
 * How a Course Dinner Can Be Served Without a Maid || align=right | 118
 * Connecting Block for Bell Wires || align=right | 119
 * }
 * To Lengthen the Life of a Necktie || align=right | 113
 * Wood Box Arrangement Saves Many Steps from the Dining-Room || align=right | 113
 * Broom Closet Utilizing Waste Space || align=right | 114
 * A Cheap Septic Tank || align=right | 114
 * A Craftsman Desk Chair || align=right | 115
 * A Serviceable Hot Water Heater Which Can Be Made at Home || align=right | 118
 * How a Course Dinner Can Be Served Without a Maid || align=right | 118
 * Connecting Block for Bell Wires || align=right | 119
 * }
 * A Craftsman Desk Chair || align=right | 115
 * A Serviceable Hot Water Heater Which Can Be Made at Home || align=right | 118
 * How a Course Dinner Can Be Served Without a Maid || align=right | 118
 * Connecting Block for Bell Wires || align=right | 119
 * }
 * Connecting Block for Bell Wires || align=right | 119
 * }
 * }