The Boy Mechanic, Volume 1

Volume 1 / Part 6 — Optical Illusion

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Volume 1 · Other sections

Index

Volume 1 · Sections

Volume 1 · Other sections

A Model Steam Engine Magic Spirit Hand Making Skis and Toboggans Homemade Life Preserver How to Make Boomerangs How to Make an Eskimo Snow House By George E. Walsh Secret Door Lock A Convenient Hot-Dish Holder Magic-Box Escape A Flour Sifter A Funnel How to Make Corner Pieces for a Blotter Pad Boring Holes in Cork Self-Lighting Arc Searchlight A Traveler's Shaving Mug Homemade Snowshoes Fish Signal for Fishing through Ice Homemade Floor Polisher Tying Paper Bag to Make a Carrying Handle Equilibrator for Model Aeroplanes Repairing Christmas-Tree Decorations Homemade Scroll Saw How to Make a Watch Fob An Austrian Top Pockets for Spools of Thread Cleaning Leather on Furniture A Baking Pan A Broom Holder Stringing Wires A Darkroom Lantern Preventing Vegetables from Burning in a Pot A Clothes Rack Homemade Shower Bath How to Make Small Sprocket Wheels Pot-Cover Closet Aid in Mixing Salad Dressing Saving Overexposed Developing Prints An Ironing-Board Stand A Desk Blotting Pad Sleeve Holders for Lavatories Removing Tarnish How to Make a Brass Bookmark Cheesebox-Cover Tea Tray Piercing-Punch for Brass Kitchen Chopping Board Carrying Mattresses A Carpenter's Gauge A Flatiron Rest Use for Paper Bags Use Chalk on Files A Homemade Steam Turbine By William H. Warnecke Homemade Telegraph Key Keeping Food Cool in Camps Homemade Work Basket A Window Display How to Make a Flint Arrowhead An Opening Handle for a Stamp Pad Concrete Kennel Nutshell Photograph Novelty Spoon Holder on a Kettle Repairing Cracked Gramophone Records New Use for a Vacuum Cleaner Filtering with a Small Funnel A Postcard Rack Substitute Shoe Horn Building a Small Photographic Dark Room The Versatile Querl An Emergency Soldering Tool Smoothing Paper after Erasing A Cherry Seeder A Dovetail Joint Base for Round-End Bottles Rustic Window Boxes Antidote for Squirrel Pest Homemade Electric Stove By J. F. Tholl Glass-Cleaning Solution Automatic-Closing Kennel Door Polishing Cloths for Silver A Book-Holder Clamping a Cork Withdrawing Paper from under an Inverted Bottle Emergency Tire Repair Broom Holder Made of a Hinge Making Proofs before the Negative Dries Flower-Pot Stand A Line Harmonograph Cutting Circular Holes in Thin Sheet Metal Key Card for Writing Unreadable Post Cards Homemade Carpenter's Vise Toning Blue on Bromide and Platinum Cutting Loaf Bread How to Make an Electric Toaster Cabinet for the Amateur's Workshop Uncurling Photographs Soldering for the Amateur Washboard Holder A Mission Bracket Shelf How to Make a Finger Ring How to Bind Magazines Metal Coverings for Leather Hinges Removing Plaster from Skin How to Make a Cheap Bracket Saw How to Make a Cannon Controller for a Small Motor How to Make a Simple Water Rheostat How to Build a Toboggan Sled By A. Boette Burning Inscriptions on Trees How to Make Small Gearwheels Without a Lathe How to Make Four Pictures on One Plate Electric Blue-Light Experiment Interesting Electrical Experiment A Cheap Fire Alarm How to Make a Small Electric Furnace How to Make an Ammeter How to Make a Three-Way Cock for Small Model-Work Easy Experiments with Electric-Light Circuit How to Make an Interrupter A Miniature "Pepper's Ghost" Illusion Experiment with Colored Electric Lamps To Explode Powder with Electricity Simple Wireless System Stop Crawling Water Colors Small Electrical Hydrogen Generator Gasoline Burner for Model Work A Homemade Telephone Receiver How to Bind Magazines A Homemade Acetylene-Gas Generator Homemade Annunciator How to Make a Box Kite Lubricating a Camera Shutter Simple Open-Circuit Telegraph Line How to Make a Thermo Battery How to Discharge a Toy Cannon by Electricity Simple Electric Lock Direct-Connected Reverse for Small Motors A Handy Ice Chisel More Uses for Pipe Fittings Sealing-Wax Bent While Cold Homemade Pottery Kiln How to Make a Small Medical Induction Coil Mechanical Trick With Cards How to Make a Rain Gauge How to Make an Aquarium Homemade Pneumatic Lock A Homemade Water Motor By Mrs. Paul S. Winter How to Make Silhouettes How to Make a Galvanoscope Lubricating Sheet Metal An Optical Top Card Trick with a Tapered Deck A Constant-Pressure Hydrogen Generator Restoring Tone to a Cracked Bell How to Make a Paper Phonograph Horn How to Make a Hygrometer The Protection of a Spring Lock A Controller and Reverse for a Battery Motor How to Build a Grape Arbor How to Make a Toy Steam Engine Writing with Electricity To Photograph a Man in a Bottle A Musical Windmill Optical Illusions Barrel-Stave Hammock A Singing Telephone A Microscope Without a Lens By E. W. Davis How to Make a Telegraph Key and Sounder How to Make a Music Cabinet Easily Made Wireless Coherer One-Wire Telegraph Line How to Make a Water Rheostat Electric Door-Opener How to Tighten a Curtain-Roller Spring Alarm Clock Chicken Feeder Homemade Disk-Record Cabinet A Battery Rheostat Automatic Time Switch How to Make a Rotary Pump How to Make a Fire Screen Trap for Small Animals Homemade Grenet Battery Door-Opener for Furnace How to Make an Efficient Wireless Telegraph By George W. Richardson Beeswax for Wood Filler How to Make a Lathe To Use Old Battery Zincs Callers' Approach Alarm Easy Method of Electroplating An Ingenious Electric Lock for a Sliding Door Parlor Magic for Winter Evenings By C. H. CLAUDY Reversing-Switch for Electrical Experiments How to Receive Wireless Telegraph Messages with a Telephone Connecting Up Batteries to Give Any Voltage A Simple Accelerometer An Egg-Shell Funnel Handy Electric Alarm To Keep Dogs and Cats Away from the Garbage-Can How to Cross a Stream on a Log Relay Made from Electric Bell Foundry Work at Home Battery Switch An Optical Illusion New Method of Lifting a Table How to Make a Paddle Boat Peculiar Properties of Ice Return-Call Bell With One Wire Circuit Breaker for Induction Coils Spit Turned by Water Power A Short-Distance Wireless Telegraph Automatic Draft-Opener A Window Conservatory How to Make an Electroscope Miniature Electric Lighting How to Make a New Language How to Make a Cup-and-Saucer Rack Reversing a Small Motor To Drive Away Dogs An Automatic Lock Experiment with Two-Foot Rule and Hammer Simple Current Reverser Alarm Clock to Pull up Furnace Draft How to Transmit Phonograph Music to a Distance How to Make a Telescope How to Make "Freak" Photographs Another Electric Lock How to Mix Plaster of Paris Enlarging with a Hand Camera Positioning A Hanging Lamp A Curious Compressed Air Phenomenon Simple Switch for Reversing a Current Novel Mousetrap Polishing Nickel Homemade Arc Light Lighting an Incandescent Lamp with an Induction Coil How to Make a Jump-Spark Coil Combined Door Bell and Electric Alarm To Build a Small Brass Furnace Avoid Paper Lamp Shades Why Gravity Batteries Fail to Work A Skidoo-Skidee Trick Effects of Radium Naval Speed Record How to Enlarge from Life in the Camera Steel Pen Used in Draftsman's Ink Bottle Cork How to Make a Pilot Balloon By E. Goddard Jorgensen How to Clean a Clock How to Make Blueprint Lantern Slides A Substitute for a Ray Filter Electric Lamp Experiments How to Make a Simple Wireless Telegraph By Arthur E. Joerin To Preserve Putty How to Make a Small Storage Battery Fitting a Plug in Different Shaped Holes How to Make a Lightning Arrester A Home-Made Punt Photographers' Printing Frame Stand Heat and Expansion Photographing a Streak of Lightning How to Make a Small Single-Phase Induction Motor By C. H. Bell Carbolic Acid Burns How to Make a Paper Book Cover How to Make Lantern Slides How To Make A Porch Swing Chair How to Find the Blind Spot in the Eye Beeswax Substitute Home-Made Water Wheel Does Family Washing An Optical Illusion Home-Made Micrometer Another Electric Lamp Experiment Removing Ink Stains Feat of Balancing on Chairs How to Make a Merry-Go-Round Swing Home-Made Arc Lamp Irrigation How to Hang Your Hat on a Lead Pencil Tying a Knot for Footballs Stove Polish How to Give an Electric Shock While Shaking Hands Experiment with Heat How to Attach a Combination Trunk Lock An Electric Illusion Box Replace Dry Putty Photo Print Washing Tank Home-Made Soldering Clamps A Telephone Experiment Wax Wood Screws How to Make an Induction Coil Home-Made Toaster Home-Made Shocking Machine Mahogany Wood Putty How to Make a Thermoelectric Battery By Arthur E. Joerin How to Make a Hygrometer Softening Leather in Gloves and Boots How to Make a Mission Library Table A Hanger for Trousers How to Make an Adjustable Negative Washer Turn-Down Shelf for a Small Space Home-Made Electric Battery Massage How to Make Tint Lantern Slides A Bicycle Catamaran How to Make a Lead Pencil Rheostat Homemade Shoe Rack How to Waterproof Canvas Building a House in a Tree Top How to Make a Lamp Stand and Shade Illuminating a Watch Dial at Night Home-Made Photographic Copying Stand Home-Made Pocket Lamp How to Make a Tangent Galvanometer Home-Made X-Ray Instrument How to Make a a Non-Polarizing Battery A Home-Made Barometer Lock Lubricant Rust Proofing Bolts Painting Yellow Pine Revolving a Wheel with Boat Sails A Floating Electromagnet A Fish Bait Homemade Air Thermometer Home-Made Battery Voltmeter How to Make a Folding Canvas Cot How to Make a Small Geissler Tube Loosening Rusted Nuts Cleaning Greasy Stoves How to Make a Take-Down Background Frame Home-Made Kite Reel Attaching Runners to a Bicycle for Winter Use A Paper That Makes Green Prints Copies Made from Wax Molds by Electro-Deposition How to Make Skating Shoes How to Make a Self-Setting Rabbit Trap How to Make an Atomizer Home-Made Kits for the Camera How to Make a Miniature Stage A Floating Compass Needle Home-Made Dog Cart How to Make a Dry Battery Cell How to Paraffin Wire Uses of Peat Scientific Explanation of a Toy Home-Made Lantern A Study of Splashes How to Make a Stick Pin How to Make a Miniature Electric Locomotive Demagnetizing a Watch How to Make a Pocket Skate Sharpener Old-Time Magic Gear-Cutting Attachment for Small Lathes Wire Terminals for Battery Connections Simple Arts and Crafts Leather Work How to Make a Simple Still Homemade Mariner's Compass Brighten White Paint Quartz Electrodes Used in Receiving Wireless Messages How to Make a Glider By Carl Bates Boys Representing the Centaur Home-Made Ladle for Melting Babbitt How to Make a Flash Lamp Photographing the New Moon

Volume 1 / Part 2 · Parts

Volume 1 / Part 2 · Other sections

Coin and Card on the First Finger How to Make Sealing Wax Hat Pins

Volume 1 / Part 3 · Parts

Volume 1 / Part 3 · Other sections

A Chinese Outdoor Game Home-Made Photograph of a Lightning Flash How to Make a Static Machine A Concrete Swimming Pool

Volume 1 / Part 4 · Parts

Volume 1 / Part 4 · Other sections

How to Bore a Square Hole How To Make Copper Trays Photograph of a Clown Face Finger Mathematics By Charles C. Bradley Optical Illusions Steam Engine Made from Gas Pipe and Fittings How to Make a Copper Bowl Cleaning Furniture Melting Lead in Tissue Paper The Principles of the Stereograph Mercury Make-and-Break Connections for Induction Coils How to Make a Barometer Home-Made Post or Swinging Light A Checker Puzzle Gold Railroad Signals How to Make a Bell Tent Simple X-Ray Experiment How to Make a Candle Shade A Putty Grinder Home-Made Small Churn Home-Made Round Swing

Volume 1 / Part 5 · Parts

Volume 1 / Part 5 · Other sections

How to Keep Film Negatives Home-Made Match Safe An Electric Post Card Projector A Handy Calendar The Fuming of Oak How to Make an Electrolytic Rectifier The Rolling Marble A Gas Cannon

Volume 1 / Part 6 · Parts

Volume 1 / Part 6 · Other sections

A Good Mouse Trap Finishing Aluminum How to Make a Sailing Canoe A Home-Made Hand Vise Proper Design for a Bird House Boomerangs and How to Make Them How to Make Water Wings How to Make an Ammeter How to Make an Equatorial Electric Light Turned On and Off from Different Places Optical Illusion How to Make a Bunsen Cell One Way to Cook Fish Hardening Copper Packing Cut from Felt Hats Homemade Gasoline Engine Dripping Carburetor A Merry-Go-Round Thriller How to Make and Fly a Chinese Kite Home-Made Vise Home-Made Changing Bag for Plate Holders Home-Made Asbestos Table Pads How to Make a Ladies' Handbag Removing Wire Insulation A Small Electric Motor Moving a Coin Under a Glass Improving Phonograph Sound How to Make Paper Balloons A Simple Steamboat Model To Remove Grease from Machinery A Game Played on the Ice Making Photo Silhouette Brass Plaques Aligning Automobile Headlights Telescope Stand and Holder How to Make an Electrical Horn Driving a Washing Machine with Motorcycle Power Home-Made Aquarium Protect Your Lathe Frame for Displaying Both Sides of Coins How to Make Lantern Slides How to Make a Developing Box Staining Wood Sheet-Metal Whisk-Broom Holder How to Make a Camp Stool A Small Home-Made Electric Motor Rocker Blocks on Coaster Sleds How to Make a Watch Fob Drill Lubricant New Way to Remove a Bottle Stopper Imitation Fancy Wings on Hinges How to Make a Child's Rolling Toy How to Make a Portfolio Gear for Model Work A Home-Made Vise Cardboard Spiral Turned by Heat A Workbench for the Amateur Repairing a Worn Knife Blade How to Make a Leather Spectacle Case Waterproofing a Wall Polishing Flat Surfaces Rubber Tip for Chair Legs Adjusting a Plumb-Bob Line Drier for Footwear Repairing A Roller Shade A Shot Scoop Removing Grease Stains from the Leaves of a Book Tightening Cane in Furniture Cleaner for a Stovepipe Mounting Photo Prints on Glass Dropping Coins in a Glass Full of Water Hollow-Grinding Ice Skates How to Make a Bicycle Coasting Sled Spelling Names with Photo Letters Holding a Loose Screw A Checker Board Puzzle Old-Time Magic How to Remove Paper from Stamps

Volume 1 / Part 1 · Parts

Volume 1 / Part 1 · Other sections

A Dovetail Joint Puzzle Radiator Water Springboard for Swimmers Taking Button from a Child's Nostril Brass Frame in Repoussé Finding the Horsepower of Small Motors Illusion for Window Attraction Cleaner for White Shoes Crossing Belt Laces How to Make a Candlestick Holder A Home-Made Duplicator Paper-Clip Bookmark Aerating Water in a Small Tank

Volume 1 / Part 2 · Parts

Volume 1 / Part 2 · Other sections

How to Make a Round Belt Without Ends Old-Time Magic Cheap Nails are Expensive Cutting Lantern Slide Masks Relieving the Weight of a Talking Machine Reproducer How to Make a Thermometer Back in Etched Copper To Make an Electric Piano

Volume 1 / Part 3 · Parts

Volume 1 / Part 3 · Other sections

Playing Baseball with a Pocket Knife How to Remove Paper Stuck to a Negative Old-Time Magic Using the Sun's Light in a Magic Lantern A Handy Drill Gauge Stove Polish A Home-Made Daniell Cell A Home-Made Equatorial By Harry Clark A Ground Glass Substitute A Miniature War Dance Saving an Engine Old-Time Magic Sliding Box Cover Fastener How to Chain a Dog Water-Color Box Saving Ink Pens A Plant-Food Percolator Lathe Safety Folding Quilting-Frames A Drip Shield for the Arms How to Cane Chairs Repairing a Cracked Composition Developing Tray How to Lay Out a Sundial

Volume 1 / Part 4 · Parts

Volume 1 / Part 4 · Other sections

An Emergency Babbitt Ladle How to Make Japanese Portieres Makeshift Camper's Lantern New Tires for Carpet-Sweeper Wheels Gauntlets on Gloves How to Make an Ornamental Brass Flag An Adjustable Punching-Bag Platform Clasp for Holding Flexible Lamp Cords Protect Camel Hair Brushes Home-Made Electric Clock Method of Joining Boards Toy Gun for Throwing Cardboard Squares Photographic Developing Tray Iron Putty Rubber Bands in Kite Balancing Strings An Aid in Sketching How to Make Miniature Electric Lamp Sockets

Volume 1 / Part 5 · Parts

Volume 1 / Part 5 · Other sections

How to Repair Linoleum How to Make an Electric Stove How to Make Weights for Athletes Removing Pies from Pans Stretcher for Drying Photograph Prints A Temporary Funnel An Electric Engine Child's Home-Made Swing Seat Clay Flower Pots Used for Bird Houses Location of a Gas Meter How to Make Rope Grills A Simple and Effective Filter Cutting Tools

Volume 1 / Part 6 · Parts

Volume 1 / Part 6 · Other sections

Home-Made Hand Vise Detector for Slight Electrical Charges Fishing through Ice with a Tip-Up Home-Made Candle Holder How to Make a Match Holder of Wood and Metal Protecting the Fingers from Chemicals Combined Turning Rings and Swings Homemade Telegraph Key Protecting Sleeves

Volume 1 / Part 7 · Parts

Volume 1 / Part 7 · Other sections

A Home-Made Tripod Holder How to Weave a Shoestring Watch Fob How to Make a Table Mat of Leather Sad Iron Polisher Making Coins Stick to Wood by Vacuum Simple and Safe Method for Sending Coins by Mail Mounting Photographs in Plaster Plaques Iron Rest for an Ironing Board Instantaneous Crystallization Decoloration of Flowers by Fumes of Sulphur How to Preserve Egg Shells Homemade Phonograph A Substitute for a Compass A Novel Rat Trap A Nut-Cracking Block A Jelly-Making Stand How to Make an Egg-Beater Cart Without an Axle An Illuminated Target Sawing Sheet Metal Feed Box for Chickens A Book Rest Window Shelf for Flower Pots Magnet for the Work Basket Knife Made from a Hack-Saw Blade Killing Mice and Rats Roller Coaster Illusion Traveling Up an Incline Block for Planing Octagonal Wood Pieces A Letter Holder of Pierced Metal Imitating Ground Glass Draw before Cutting Making "Spirits" Play a Violin Sizing a Threaded Hole Leaded-Glass Fire Screen A Revolving Teeter Board Home-Made Pot Covers An Outdoor Gymnasium Part I-The Horizontal Bar Electrostatic Illumination Balloon Ascension Illusion By C. W. Nieman A Cork Extractor An Outdoor Gymnasium Part II-Parallel Bars Combined Ladle and Strainer Cleaning Gloves Turpentine in Cutting Oil Center of Gravity Experiment Lathe Accuracy An Outdoor Gymnasium PART III-The Horse Spoon Rest for Kettles Reason for Bursting of Gun Barrels Hand Sled Made of Pipe and Fittings Emergency Magnifying Glass Bent-Iron Pipe Rack To Clean Silver Sharpening Skates with a File Lines and Letters Made with a Carpenter's Pencil Insulating Aluminum Wire How to Build an Ice-Yacht Condensed from an article by H. Percy Ashley in Rudder.Turning Lights On and Off from Any Number of Places How to Make an Electric Pendant Switch Measure Home-Made Water Motor Device for Baseball Throwing Practice How to Mail Photographs A Mystifying Watch Trick Locking Several Drawers with One Lock Testing Small Electric Lamps How to Make a Pin Ball Cleaning Woodwork Bill File Made of Corkscrews Ornamental Metal Inkstand Holding Eyeglasses Firm Substitute for Gummed Paper Repairing a Broken Phonograph Spring Calls While You Are Out A Small Bench Lathe Made of Pipe Fittings Holder for Flexible Lamp-Cord Support for Double Clotheslines Hot Pan or Plate Lifter Weighting Indian Clubs Venting a Funnel Lubricating Woodscrews To Make "Centering" Unnecessary Fountain Pen Cap Used as a Ruler Vanishing Handkerchief Trick Removing Glass Letters from Windows A Guitar That Is Easy to Make Greasing the Front Wheels of an Automobile Removing Mold How To Make A Paper Boat A Light Boat That Can Be Easily Carried To Hang Heavy Things on a Nail A Home-Made Elderberry Huller How to Make a Bulb on a Glass Tube How to Make a Sconce How To Make a Hectograph How to Make a Sailomobile By Frank Mulford, Shiloh, N. J.A Home-Made Magic Lantern A Quickly Made Lamp How to Make a Paper Aeroplane Bronze Liquid A Wrestling Mat A Pocket Voltammeter A Film Washing Trough Wood Burning The Diving Bottle How to Make an Inexpensive Wooden Fan Combination Telegraph and Telephone Line How to Make a Miniature Windmill How to Make a Telegraph Instrument and Buzzer How to Make a Water Bicycle How To Make a Small Searchlight Electric Alarm that Rings a Bell and Turns on a Light How to Hold a Screw on a Screwdriver How to Make a Lead Cannon Homemade Electric Bed Warmer Making a Fire with the Aid of Ice How to Make a Crossbow and Arrow Sling A Home-Made Vise Temporary Dark Room Lantern Runny Paint Camps and How to Build Them Brooder for Small Chicks Faucet Used as an Emergency Plug Automatic Electric Heat Regulator Repairing a Washer on a Flush Valve Cleaning Discolored Silver How to Make a Small Electric Motor By W. A. Robertson Protecting Tinware Another Optical Illusion Substitute for Insulating Cleats Electrically Operated Indicator for a Wind Vane A Home-Made Floor Polisher How to Make a Lady's Card-Case Home-Made Fire Extinguisher Crutch Made of an Old Broom Toy Darts and Parachutes A Tool for Lifting Can Covers Keeping Rats from a Chicken Coop Homemade Telephone Receiver How to Clean Jewelry Ornamental Iron Flower Stand How to Make a Coin Purse Window Anti-Frost Solution How to Make a Turbine Engine Painting A Car How To Build An Ice Boat Electric Rat Exterminator How to Make a Simple Fire Alarm To Build a Merry-Go-Round Arbor Wheels Novelty Clock for the Kitchen How to Make a Small Silver Plating Outfit Removing a Tight-Fitting Ring from a Finger A Photographic Jig-Saw Puzzle Rolling Uphill Illusion Maple Leaf Annealing Chisel Steel How to Make a Post Card Holder Unused Paint Perfume-Making Outfit Home-Made Duplicator for Box Cameras Optical Illusions Use of Kerosene in Polishing Metals How to Make Lamps Burn Brightly A Practical Camera for Fifty Cents By C. H. Claudy Use for an Old Clock Renewing Dry Batteries Saving a Brush How to Make a Simple Burglar Alarm How to Fit Corks Right Handed Engine Home-Made Crutch Home-Made Necktie Holder How to Make a Trousers Hanger Easy Designs in Ornamental Iron Work How to Make a Water Wheel How To Build An Imitation Street Car Line Clean Before Painting Varnish for Electric Terminals Measuring the Height of a Tree White Putty to Black Using Sandpaper An Interesting Electrical Experiment Novelty Chain Made from a Match Keeping Doors Closed Restoring Broken Negatives Coin and Tumbler Trick Another Way to Renew Dry Batteries Simply Made Wire Puzzle Pronunciation Repairing Box Cameras A Fishhook Box A Tin Drinking Cup for the Camp A Bookmark Kitchen Knife Sharpener Devices of Winter Sports How to Make and Use Them The Running Sleigh Home-Made Settee Enameling a Bicycle Frame How to Make a Sewing Bag Home-Made Roller Skates Adjuster for Flexible Electric Wires Making Photographs on Watch Dials Home-Made Overhead Trolley Coaster How to Make an Electric Furnace Regulator Weatherproofing for Tents Sawing Sheet Metal A Monoplane Weather Vane How to Make a Minnow Trap A Remedy for Leaking Fountain Pens Kites of Many Kinds and How to Make Them How to Make Rubber Stamps To Light a Gaslight Without Matches How To Make a Trap For Rabbits, Rats and Mice Novel Electric Motor How to Print Photographs on Silk Removing Old Paint A Window Lock Homemade Magnifying Glass Trailer for a Bicycle Home-Made Telephone Transmitter Quickly Made Lawn Tent How to Make a Windmill of One or Two Horsepower for Practical Purposes To Renew Old Dry Batteries Blue Dye Acetylene lamp Another Electric Motor How to Make a Propelling Vehicle Ringing a Bell by Touching a Gas Jet Lead Kills Knots How to Make a Wood Turning Lathe Out of an Old Sewing Machine Reversing Small Battery Motor Cleaning Bronze Bearings A Water Candlestick How to File Soft Metals To Make a Magazine Binder Temporary Spline A Library Set in Pyro-Carving By Helen Westinghouse Cleaning Brass A Phoneidoscope A Home-Made Yankee Bobsled How to Make a Small Microscope Freezing Pipes How to Carry Books Bottle Pushers How to Make a Hammock How to Obtain Cheap Dry Batteries How to Make a Water Telescope How to Rid Your Yard of Cats Substitute for a Drill Bit Drying Films Grooved Pulley Made from Sheet Tin An Emergency Glass Funnel An Electrical Walking Stick Convenient Shelf Arrangement A Shoe Scraper Fastening a Shade to a Roller Vegetable Slicer How to Make an Etched Copper Picture Frame How to Make an Easel How to Make a Wind Propeller Replacing Ball Bearings How to Construct an Annunciator How to Make a Steam Calliope Sharpening Scissors Counter Brush for a Shop A Curtain Roller Shade-Holder Bracket for a Gas Jet To Longer Preserve Cut Flowers Glass Blowing and Forming Cadmium and Solder Telegraph Codes How to Make a Cruising Catamaran Alligator Photo Mounts How to Attach a Sail to a Bicycle Removing Iodine Stains Drying Photograph Prints without Curling Puncturing Glass Plates A Home-Made Still Old-Time Magic Experiment with an Incandescent Lamp How to Make a Small Motor Aluminum Polish Homemade Blowpipe Substitute Sink or Bathtub Stopper Safety Tips on Chair Rockers How to Make a Toy Flier How to Make an Ironing-Board Stand A Home-Made Electric Plug How to Make an Electric Fire Alarm Home-Made Boy's Car Photographs in Relief Easily Made Wireless Tip How to Make a Wireless Telephone Eyelets for Belts How to Make a Life Buoy A Home-Made Microscope A Novel Electric Time Alarm How to Make a Phonograph Record Cabinet Experiments with a Mirror Miniature Electric Lamps How to Make a Magazine Clamp Pewter Finish for Brass Drowning a Dog's Bark with Water Cost of Water How to Make a Wondergraph By F. E. Tuck How to Make a 110-Volt Transformer Experiment with a Vacuum The Making of Freak Photographs Hand Car Made of Pipe and Fittings How to Make a Rustic Seat Heated Steering Wheel Homemade Workbench By C. E. McKinney, Jr.Forming Coils to Make Flexible Wire Connections Photographing the North Star How to Relight a Match Home-Made Hand Drill How to Make a Stationary Windmill Electric Anesthesia A Simple Battery Rheostat A Frame for Drying Films A Home-Made Novelty Clock Fourth-of-July Catapult How to Make a Miniature Volcano Wire Loop Connections for Battery Binding-Posts Melting Metal in the Flame of a Match Russian Squirrels Landscape Drawing Made Easy Irrigating with Tomato Cans Fountain for an Ordinary Pen Homemade Mousetrap Clear Wax Impressions from Seals A Window Stick How to Make a Canoe Thorns Used as Needles on a Phonograph Tool Hangers Child's Footrest on an Ordinary Chair Drying Photo Postal Cards Preserving Key Forms Renewing Typewriter Ribbons Drinking Trough for Chickens Ordinary Pen Used as a Fountain Pen How to Construct a Small Thermostat By R. A. McClure A Tailless Kite The Levitation—A Modern Stage Trick

Illustration from The Boy Mechanic, Volume 1: 700 Things for Boys to Do

Can you tell which of these three figures is the tallest? Make a guess, and then verify its correctness by measurement.

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