INDEX.

Abbe’s Stereo-Binocular, 289

Absorption Process, Ice Making, 441

Acetylene Gas, 333

Adirondack, Steamer, 141

Agricultural Chemistry, 225

Aids to Digestion, 243

Air Blast, 374

Air Brakes, 129

Air, Carburetted, 336

Alloys, 389

Aluminum, 225-390

Ambrotype, 304

Anæsthesia, 246

Anæsthesia by Chloroform, 247

Ancient Iron Furnace, 372

Aniline, 222

Annealing and Tempering, Electricity in, 387

Antikamnia (Acetanilide), 248

Antipyrine, 248

Antiseptic Surgery, 256

Antiseptics, Coal Tar, 223

Archer’s Collodion Process Photos, 304

Arc Lamp Feed, 66

Arc Lamp, Simple, 64

Arc Lamp, Weston, 65

Arc Lamp, Large, 65-69

Arkwright’s Drawing Rolls, 421

Arlberg Tunnel, 346

Armored Cruiser, 150

Armor Plates, Manufacture of, 383

Artesian Wells, 350

Artificial Limbs, 251

Atlantic Cable, 32-37

Automatic Ball Governor, 104

Automatic Telegraph, 22

Automobile, 265-272

Automobile Statistics, 271

Babbitt Metal, 389

Bachelder Sewing Machine Feed, 186

Bacteriology, 252

Bain’s Telegraph, 22

Baldwin’s Locomotives, 126

Band Saws, 364

Barbed Wire Fences, 388

Barlow’s Electric Wheel, 48

Battery, Storage, 88

Battleships, 150

Beach, Alfred E., Tunneling Shield, 346

Beach’s Typewriter, 174

Bell & Tainter’s Improved Phonograph, 276

Bell’s Telephone, 77

Bentham, Sir S., Invents Woodworking Machinery, 360

Berliner’s Telephone, 82

Bessemer Steel, 376

Beverages, 244

Blake Telephone Transmitter, 83

Blanchard’s Lathe, 368

Blast Furnace, 374-375

Blasting, 351

Blasting, Electro, 99

Blenkinsop’s Locomotive, 119

Blickensderfer Typewriter, 180

Bloomeries, Air, 373

Body Appliances, Electric, 97

Book Typewriter, 181

Bourdon’s Steam Gauge, 107

Bicycle, 259-265

Bicycle Speed, 264

Bicycle Statistics, 265

Binding Devices for Reaper, 203

Biograph, 298

Bipolar Dynamo, 42

Brake, Bicycle, 264

Bramah’s Planer, 366

Branca’s Steam Turbine, 109

Branson’s Automatic Knitter, 431

Breech Mechanism, Interrupted Thread, 399

Bridge, Brooklyn, 342

Bridge, Cabin John, 344

Bridge, Forth, 340

Bridges, Masonry, 342

Bridge, Trezzo, 344

Bright’s Disease, 250

Brooklyn, Armored Cruiser, 151

Brooklyn Bridge, 342

Buildings, High, 353

Burt’s Typewriter, 172

Butchering and Dressing Meats, 237

Buttonhole Machine, 191

Cabin John Bridge, 344

Cablegrams, First, 33

Cable Statistics, 36

Cable, Submarine, 32

Cable Tolls, 37

Cableway, Lidgerwood, 349

Caissons, 345

Calcium Carbide, 225

Calcium Carbide Factories, 336

Calcium Carbide Furnace, 46

Caligraph Typewriter, 177

Calotype, 303

Camera, 306

Camera Obscura, 306

Camera Shutter, 307

Canal, Chicago Drainage, 350

Canal, Suez, 347

Candle, Jablochkoff, 64

Canning Industry, 235

Cannon, Breech-Loading, 397

Cannon Invention, 395

Caoutchouc, 210

Capitol Building, 357

Caps, Percussion, 416

Carafes, Frozen, 441

Carbolic Acid, 247

Carbon Microphone, 82

Carbon-Printing, Photography, 305

Carborundum, 225

Carborundum Furnace, 45

Carburetted Air, 336

Car Coupling, 129

Carpet Sewing Machine, 192

Carré’s Ice Machine, 441

Cartwright Invents Power Loom, 426

Car Wheels, Turning, 387

Cash Carrier, 461

Casting Pig Iron, 379

Castalia, Steamer, 140

Cathode Ray, 321

Celestial Photography, 310

Cementation, 385-387

Centrifugal Filter, 243

Centrifugal Milk Skimmer, 235

Chain Bicycle, 263

Chair, Electrocution, 44

Champion Reaper, 202

Charlotte Dundas, Steamboat, 134

Chemical Telegraph, 22

Chemistry, 221-227

Chicago Drainage Canal, 350

Chill Molds, 388

Chipping Logs, Wood Pulp, 162

Chloral Hydrate, 247

Chronology of Inventions, 7-14

Circular Saw, Hammering to Tension, 362

Circulation of Blood, 246

Civil Engineering, 340-359

Clermont, Steamboat, 136

Cloth, Finishing, 432

Cloth Presser, 432

Coal Gas Works, 330

Coal Tar Dyes, Statistics, 226

Coal Tar Products, 222

Coating with Metal, 387

Code, Morse, 20

Collecting Rubber, 211

Collodion Process Photography, 304

Color Photography, 311

Color Printing Press, 159

Columbia Electric Automobile, 270

Columbian Press, 156

Compound Expansion Engine, 115

Compound Locomotive, 128-130

Compound Steam Turbine, 109

Concentrator, Magnetic, 392

Continuous Web Press, 157

Cooper, Peter, Rolls Iron Beams for Buildings, 354

Cord Binding Reaper, 203

Corliss Valve Gear, 106

Cort Makes Wrought Iron, 373

Cotton, Diamond, 434

Cotton Gin, 423

Cracker and Cake Machine, 234

Crompton Invents Mule Spinner, 422

Cryptoscope, Salvioni’s, 322

Cuisine, Ocean Steamer, 145

Culture, Bacteria, 255

Cut-Off, Sickel’s, 105

Cut-Off, Steam, 104

Cyanide Process, 391

Daguerreotype, 303

Daguerre’s Invention, 303

Dahlgren Gun, 397

Dal Negro Electric Motor, 49

Daniell Battery, 16

Darby Makes Iron with Coke, 373

De Laval’s Steam Turbine, 111

De Lesseps Builds Suez Canal, 347

Demologos, First War Vessel, 146

Densmore Typewriter, 180

Dentistry, 250

Desk Telephone, 86

Deutschland’s Engines, 115

Digesters, Wood Pulp, 163

Digestion, 252

Disease Germs, 253

Double Hull Steamer, 140

Dough Mixer, 232

Draisine Bicycle, 260

Drawing Rolls, Spinning, 421

Dredges, 349

Drill Jar, 350

Drills, Rock, 351

Drinks, 244

Drummond Light, 338

Dry Plate Photography, 306

Dudley’s Early Ironworking, 373

Duplex Telegraph, 23

Duplicating Phonograph Records, 279

Dust Collector, Flour Mills, 232

Dyes, Coal Tar, 223

Dynamite Gun, 405

Dynamo Armature, 43

Dynamo, Bipolar, 42

Dynamo, Description of, 42

Dynamos, Different Kinds, 42

Dynamo Electric Machine, 38-47

Dynamo, Gramme and D’Ivernois, 41

Dynamo, Hjorth, 40

Dynamo, Multipolar, 47

Dynamo, Siemens’, 41

Dynamo, Wilde, 41

Eads, Caissons of, 345

Earthquake-Proof Palace, 355

Edison’s Electric Lamp, 67-73

Edison’s Carbon Microphone, 82

Edison’s Concentrating Works, 392

Edison’s Electric Pen, 96

Edison’s Kinetoscope, 297

Edison’s Three Wire System, 72-74

Edison’s X-Ray Apparatus, 323

Eiffel Tower, 355

Electric Automobile, 270

Electric Body Appliances, 97

Electric Cautery, 97

Electric Furnace, 44

Electric Furnace, Acheson, 45

Electric Furnace, Bradley, 46

Electric Lamp, Edison’s, 67-73

Electric Lamp, Sawyer-Man, 67-73

Electric Lamp, Starr-King, 66

Electric Launch, 93-94

Electric Light, 63-75

Electric Light Beacon, 65-69

Electric Light Circuit, 74

Electric Locomotive, 59

Electric Motor, 48-62

Electric Motor, Barlow’s Wheel, 48

Electric Motor, Dal Negro, 49

Electric Motor, Davenport, 51-52

Electric Motor, Dr. Page, 51

Electric Motor, Faraday, 48

Electric Motor, Henry, 50

Electric Motor, Jacobi, 51

Electric Motor, Neff, 52

Electric Motor, Prof. Henry’s, 50

Electric Motor, Railway, 58

Electric Motor, Westinghouse, 53

Electric Musical Instruments, 98

Electric Pen, Edison’s, 96

Electric Piano, 98

Electric Railway, First, 54

Electric Railway Statistics, 60

Electric Telephone, 76

Electric Welding, 91

Electrical Generation, Polyphase, 43

Electrical Navigation, 92

Electricity Direct from Fuel, 92

Electricity in Medicine, 96

Electricity, Miscellaneous, 88-99

Electro-Blasting, 99

Electro-Chemistry, 225

Electrocution, 44

Electro-Magnet, Henry’s, 17-18

Electro-Magnetism by Oersted, 18

Electro-Magnet, Sturgeon’s, 18-19

Electro-Plating, 93

Elements, New, 227

Elevators, Passenger, 459

Elliott & Hatch Typewriter, 182

Emulsions, Photography, 305

Engine, Gas, 337

Engine, Rotary, 109

Epilogue, 465-467

Ericsson’s Monitor, 148

Ericsson’s Screw Propeller, 137

Etherization, 246

Excavating Quicksand by Freezing, 345

Explosives, High, 419

Facsimile Telegraph, 24

False Teeth, 251

Faraday Converts Electricity Into Power, 48

Farmer Utilizes Electric Light, 67

Farms, Large, 207

Fastest Railway Speed, 131

Fastest Speed, Steam Vessel, 146

Faure Storage Battery, 90

Feathering Paddle Wheel, 138-141

Feed, Sewing Machine, 186-187

Fermenting and Brewing, 223

Field, Cyrus W., 32

Fields, Large, 207

Films, Photographic, 308

Filter, Centrifugal, 243

Fire Alarm Telegraph, 24

Firearms and Explosives, 394-419

Firearms, Early, 395

Fire Engine, Steam, 114

First Cable Message, 33

First Dynamo, 40

First Electric Light in Dwelling, 67

First Gas Company, 330

First Incandescent Lamp, 66-72

First Locomotive, 119

First Ocean Voyage, 137-145

First Phonograph, 274

First Photographic Portrait, 310

First Railway in U. S., 131

First Rubber Shoes, 212

First Telegraphic Message, 15

First Telegraphic Signal, 18

First War Vessel, 146

Flood Rock, Destruction of, 352

Flour Mills, 230

Fluorometer (X-Ray), 326

Fluoroscope, Edison’s, 323

Focus Tube, X-Ray, 326

Food and Drink, 228-244

Food Products, Statistics, 229

Foods, Patented, 244

Forging Press, 383

Forth Bridge, 340

Fourdrinier Machine, 161

Franklin’s Printing Press, 155

Fulton, Robert, 134

Fulton’s Demologos, 146

Galvani’s Experiment, 16

Galvanizing, 387

Gas, Acetylene, 333

Gas Checks, Ordnance, 398

Gas, Coal, 330

Gas Engine, 337

Gases, Liquefaction of, 447

Gas Lighting, 329-339

Gas Meter, 337

Gasoline Automobile, 268

Gas, Water, 332

Gatling Gun, 405

Gauge, Steam, 107

Gelatine Films, Photography, 308

Germs, Disease, 253

Gessner’s Cloth Press, 432

Giffard Injector, 105

Glucose, 223

Gold, Cyanide Process, 391

Goodyear Discovers Vulcanization, 214

Goodyear Introduces Rubber Into Europe, 214

Goodyear’s Experiments With Rubber, 212

Gramophone, 280

Grande Lunette Telescope, 287

Grape Sugar, 223

Graphophone, 277

Great Eastern, 138

Greathead Improves Tunneling Shield, 347

Grove, Prof., Electric Lamp, 66-72

Gun Cotton, Making, 224

Gun, Magazine, 411

Gun, Disappearing, 401

Gunpowder, 416

Gun, 16-inch, 401

Gunpowder, White, 417

Guns, Hammerless, 414

Gutenberg’s Movable Type, 154

Hackworth’s Locomotive, 121

Half Tone Engraving, 314

Hammer, Steam, 112

Hammond Typewriter, 178

Hargreaves Invents the Spinning-Jenny, 421

Harvester, 195

Harvest Scene, 208

Harvey Process, 387

Hayward Adds Sulphur to Rubber, 213

Heddle, 426

Hedley’s “Puffing Billy”, 120

Heliography, Niépce, 302

Henry’s Electric Motor, 50

Henry’s First Telegraph, 18

Hero’s Engine, 101

Hjorth Dynamo, 40

Hoe Printing Press, 157

Holden Ice Machine, 443

Holland Submarine Boat, 152

Homœopathy, 250

Horrocks Applies Steam to Looms, 428

Horseshoes, Manufacture of, 383

Hot Blast Furnace, 374

House Printing Telegraph, 24

House Sanitation, 256

Howe’s Sewing Machine, 184

Hussey’s Reaper, 196

Hydraulic Dredges, 349

Hydropathy, 250

Ice Machine, Holden, 443

Ice Machines, 436-446

Ice Plant, 442

Ice Skating Rinks, 445

Incandescent Lamp, 66

India Rubber Statistics, 217

Injector, Giffard, 105

Instantaneous Photos, 308

Iron and Steel Statistics, 390

Ironclad Monitors Cross Ocean, 148

Ironclads, 147

Jablochkoff Candle, 64

Jacobi’s Electric Boat, 92

Jacobi’s Electric Motor, 51

Jacquard Loom, 427

Janney Car Coupling, 129

Jenkins’ Phantascope, 299

Jetties, Mississippi, 352

John Bull, Locomotive, 124

Kaiser Wilhelm, Steamer, 142

Kaleidoscope, 294

Kelly’s Process Making Steel, 377

Kinetoscope, 297

Kirchhoff’s Spectroscope, 293

Kneading Machines, 233

Knitting Machines, 430

Kodak Camera, 307-309

König’s Rotary Press, 157

Krag-Jorgensen Magazine Rifle, 413

Krupp Gun, 398

Laryngoscope, 249

Latch Needle for Knitting Machine, 432

Lathe, Blanchard’s, 368

Laughing Gas, 246

Launches, Electric, 94

Leading Inventions, Nineteenth Century, 7-14

Lee Invents Knitting Machines, 431

Lee’s Magazine Rifle, 412

Lick Telescope, 286

Light, Electric, 63

Light, Rapidity of Travel, 299

Lime Light, 338

Link Motion, 128

Linotype Printing, 165

Liquid Air, 447-457

Lister’s Antiseptic Surgery, 256

Lithography, 170

Lithotrity, 250

Locke Wire Binder, 203

Locks, Pneumatic Lift, 300

Locomobile, Steam, 267

Locomotive, Electric, 59

Locomotive, Largest, 132

Locomotive, Steam, 118

Loom, Jacquard, 427

Loom, Positive Motion, 429

Loom, Power, 426

Lovers’ Telegraph, 76

Lowe’s Water Gas Apparatus, 332

Lyall Positive Motion Loom, 429

Machine Gun, 405

Magazine Pistol, 409

Magnetic Concentrator, 392

Magneto-Electric Machine, 38-39

Malarial Parasite, 254

Mann Harvester, 200

Mantles for Welsbach Burner, 338

Marconi’s Wireless Telegraphy, 27

Marsh Harvester, 201

Matches, Friction, 460

Matching Machines, 366

Materia Medica, 247

Mauser Rifle, 413

McCormick Reaper, 197-199

McKay Shoe Sewing Machine, 190

Meats, Dressing, 238

Medical Electricity, 96

Medicines, Coal Tar, 223

Medicine, Surgery, Sanitation, 245-258

Mege’s Oleomargarine, 239

Melville Introduces Gas in U. S., 330

Mercerized Cloth, 434

Mergenthaler Linotype Machine, 166

Metal Founding, 388

Metallurgy, Early History of, 372

Metal Production in the United States, 393

Metal Tube Making, 387

Metal Turning, 387

Metal Working, 371-393

Meter, Gas, 337

Michaux’s Bicycle, 261

Micro-photographs in Beleaguered Paris, 291

Microscope, 290

Middlings Purifier, 231

Milk Skimmer, 235

Milling, Flour, 230

Mills’ Typewriter, 171

Mines, Submarine, 417

Minor Inventions, 458-464

Molding Machines, 366

Monitor Monadnock, 149

Mont Cenis Tunnel, 345

Monument, Washington, 356

Morrow Bicycle Brake, 264

Morse Telegraph, 19

Mortising Machines, 369

Morton and Jackson Patent Anæsthesia, 247

Moving Pictures, 295

Mule Spinner, 422

Musical Instruments, Electric, 98

Muybridge’s Photos Trotting Horses, 297

Nails, Wire, 388

Nasmyth’s Steam Hammer, 112

Natural Gas, 329-339

Navies’ Tonnage, 146

Navigation, Electric, 92

Navigation, Steam, 133

Needle Gun, 411

Newcomen’s Engine, 102

Nicholson’s Rotary Press, 156

Niépce’s Heliography, 302

Nitro-Glycerine, 224

Nitrous Oxide Gas, 246

Northrop Loom, 429

Oceanic, Largest Steamer, 139-143

Octuple Printing Press, 158

Old Ironsides, Locomotive, 125

Oleomargarine, 239

Oliver Typewriter, 181

Open Hearth Steel, 380

Opthalmometer, 249

Opthalmoscope, 249

Optics, 284-300

Ordnance, Breech-Loading, 397

Oregon, Battleship, 150

Ore Separator, Magnetic, 392

Ostergren and Berger Liquid Air, 450

Otto Gas Engine, 338

Pacific Railway, 131

Paddle Wheel, Feathering, 138

Panorama Camera, 311

Paper Making, 159-165

Paper Making, Speed in, 165

Paper Making Statistics, 165

Paper Pulp Beater, 160

Parsons Steam Turbine, 109

Patented Foods, 244

Patents, 462

Perfumes, Coal Tar, 223

Perkins Invents Ice Machines, 438

Persistence of Vision, 295

Phantascope, 299

Phenacetin, 248

Phenakistoscope, 295

Phœnix, Steamboat, 136

Phonautograph, 276

Phonograph, 273-283

Phosphor Bronze, 389

Photo-engraving, 312

Photographic Experiments, First, 302

Photographic Positives, 303

Photographic Roll Film, 308

Photographs by Artificial Light, 308-316

Photography, 301-318

Photography, Celestial, 310

Photography, Half Tone Engraving, 314

Photography in Colors, 311

Photo-lithography, 312

Photo-micrographs, 253

Piano, Electric, 98

Pictet Ice Machine, 439

Pictet’s Researches, 455

Pieper Automobile, 271

Pig Iron, 375

Pigs, Casting, 379

Pins, The Manufacture of, 389

Pintsch Gas, 336

Pistols, 407

Pixii Electric Machine, 39

Planing Machines, 366

Planté Storage Battery, 88-89

Plate Printing, 169

Platinotypes, 305

Pneumatic Caissons, 345

Pneumatic Tires, 263

Poetsch Method of Tunneling, 345

Polarization of Light, 294

Polyphase Generation, 43

Ponton, Mungo, Photography, 305

Precious Metals, Statistics, 393

Premo Camera, 309

Preparing Rubber, 215

Preserving Food, 235

Printing, 154-170

Printing Telegraph, 23-24

Priscilla, Steamer, 142

Progin’s Typewriter, 172

Progress Photographic Art, 306

Puddling Furnace, 373

Pulp, Wood, 161

Pulse Recorder, 249

Purifier, Middlings, 231

Quadruplex Telegraph, 23

Quarter Sawing, 363

Queen Victoria, First Cablegram, 33

Quinine Discovered, 247

Rabbeth Spinning Spindle, 425

Railway Motor, Electric, 58

Railway Statistics, 131

Railway, Steam, 118

Range Finder, 295

Rapid Fire Gun, 400

Rare Metals, Metallurgy, 390

Reaper, 195-209

Reaper Statistics, 205-206

Rebounding Lock, 415

Recorder, Siphon, 35

Reece Buttonhole Machine, 191

Regenerative Furnace, 381

Register, Morse, 21-22

Reis’ Telephone, 78

Remington Typewriter, 176

Return Circuit, Earth, 18

Review of Century, 3-6

Revolvers, 408

Revolving Turret, 147

Rifling of Firearms, 396

Ring Frame, Spinning, 425

Rock Drills, 351

Rocket, Locomotive, 122

Rodman’s Method of Casting Guns, 397

Roentgen Rays, 319-328

Rogues’ Gallery, 310

Roller Mill, Flour, 230

Roll Film, Photography, 308

Rotary Engine, 109

Rotary Hook Sewing Machine, 187

Rotary Press, 156

Rover Bicycle, 263

Rubber Cloth, 216

Rubber, India, 210-220

Rubber Shoes, 217-218

Safes, Fireproof, 461

Safety Bicycle, 264

Safety-Lamp, 359

Saint’s Sewing Machine, 184

Salol, 248

Salvioni’s X-Ray Tube, 322

Sanitation, 245

Sanitation, House, 256

Savannah, Steamer, 137-145

Saw, 360

Saw, Circular, 361

Sawmill Carriage, 362

Sawyer-Man Electric Lamp, 67-73

Saxton Electric Machine, 39

Schlick System, 116

Schools of Medicine, 250

Screw Propeller, 135-137

Screws, Bolts, etc., 383

Screws, Gimlet Pointed, 385

Screws, Rolling, 386

Screw Steamer, Stevens’, 134

Search Light, 70-71

Seidlitz Powders, 247

Self-Binding Reaper, 203

Self-Raking Reaper, 202

Sewerage, Sanitary, 256

Sewing Machine, 183-194

Sewing Machine Statistics, 188-193

Sheathing Railway Train, 132

Shield, Tunneling, 346-347

Shoe Sewing Machine, 190

Sholes’ Typewriter, 176

Shot Making, 389

Shuttle, Flying, 426

Sickel’s Cut-off, 105

Siemens’ Electric Railway, 54

Siemens-Martin Steel, 381

Siemens’ Regenerative Furnace, 381

Silk, Artificial, 433

Silver Printing, 305

Singer Sewing Machine, 187

Siphon Recorder, 35

Skating Rinks, Ice, 445

Skeleton Construction, 353

Skimmer, Milk, 235

Sleeping Car, 131

Small Arms, 407

Smith-Premier Typewriter, 178

Snap-Shot Camera, 309

Solarometer, 295

Spectroscope, 292

Spectrum, 292

Spectrum Analysis, 293

Speed Across Atlantic, 145

Speed, Railway, 131

Sphygmograph, 249

Sphygmometrograph, 249

Spindle, Spinning, 425

Spinning-Jenny, 420

Spinning Spindle, 425

Statistics, Steam Navigation, 152

Steam Automobile, 266

Steamboat, 133

Steamboat, Fulton’s, 136

Steam Cut-off, 104

Steam Engine, 100-117

Steam Engine, Hero’s, 101

Steam Engine, Newcomen, 102

Steam Engine, Watt’s, 103

Steamer, Swinging Cabin, 140

Steam Feed Saw Carriage, 363

Steam Fire Engine, 113

Steam Gauge, 107

Steam Hammer, 112

Steam Harvester and Thresher, 206

Steam Locomotive, 118

Steam Navigation, 133-153

Steam Navigation Statistics, 152

Steam Planting, 206

Steam Power Statistics, 116

Steam Railway, 118-132

Steam Turbine, 109

Steel Alloys, 389

Steel, Open Hearth, 380

Stephenson’s Link Motion, 128

Stephenson’s Locomotives, 121-123

Stereo-Binocular Field Glass, 289

Stereoscope, 294

Stereoscopic Camera, 310

Stereotyping, 159

Sterilizing Food Stuffs, 236

Stethoscope, 249

Stevens’ “Phœnix”, 136

Stevens’ Screw Steamer, 134-135

St. Gothard Tunnel, 346

Stockton & Darlington Railway, 121

Storage Battery, 88

Storage Battery, Faure, 90

Storage Battery, Planté, 88

Storage Battery, Ritter, 88

Stourbridge Lion, Locomotive, 123

Submarine Boat, 152

Suez Canal, 347

Sugar Making, 241

Sulfonal, 248

Surgery, 245

Surgical Instruments, 249

Symington’s Steamboat, 134

Synthesis Organic Compounds, 222

System, Third Rail, 57

Talbot’s Photographic Prints, 303

Talbotype, 303

Taupenot’s Dry Plates, 306

Telegraph, Edison’s Quadruplex, 23

Telegraph, Electric, 15-31

Telegraphic Conductor, 17

Telegraphing by Induction, 25

Telegraph Statistics, 30

Telegraph, Wireless, 26

Telephone, 76-87

Telephone, Bell, 77

Telephone, Blake Transmitter, 83

Telephone, Bourseul, 77

Telephone, Drawbaugh, 77

Telephone Exchange, 86-87

Telephone, Gray, 77

Telephone, Reis, 78

Telephone Statistics, 86

Telephone, Undulatory Current, 79

Telephone, Variable Resistance, 82

Telescope, 285

Telescopic Discoveries, 284

Textiles, 420-435

Thaumatrope, 295

Thimonnier’s Sewing Machine, 184

Third-Rail System, 57

Thompsonian System Medicine, 250

Thompson, Sir William, 35

Thorp Invents Ring Spinning, 425

Three Wire System, 72-74

Thurber’s Typewriter, 173

Ticker, Stock Broker’s, 23-24

Timby’s Revolving Turret, 147

Time Locks, 461

Tolls, Suez Canal, 347

Tonnage World’s Navies, 146

Tools, Machine, 386

Traction Engine, 206

Transformer, 43

Trevithick’s Locomotive, 118

Trevithick’s Steam Carriage, 266

Tripler, Liquid Air, 450

Trolley, Overhead, 55

Trolley, Underground, 56

Trouvé Electric Boat, 92

Tube Manufacture, 387

Tunneling Shield, 346

Tunnels, 345

Turbine, Steam, 109

Turbinia, Steamer, 111

Turret Monitor, 148

Typewriter, 171-182

Typewriter, Oldest, 171

Typewriter for Blind, 174

Typewriter Statistics, 182

Utilizing Heat from Blast Furnace, 375

Vaccination, 245

Vacuum Pan, Sugar, 242

Vacuum Tubes, 321

Valve Gear, Corliss, 106

Velocipede, 261

Vertical Fork Bicycle, 262

Viper, Torpedo Boat, 111

Vitascope, 297

Voltaic Arc, 63

Voltaic Pile, 16

Vulcanized Rubber, 210

Wall Telephone, 85

Washington Monument, 356

Washington Press, 156

Watch, Stem-Winding, 460

Water Closets, 256

Water Gas, 331

Watt’s Steam Engine, 103

Wax Cylinder, Phonograph, 277

Weaving, 425

Wegmann’s Roller Mill, 230

Welding, Electric, 91

Wells, Artesian, 350

Wells, Petroleum, 350

Wells, Dr., Produces Anæsthesia, 246

Welsbach Gas Burner, 338

Westinghouse Air Brake, 129

Westinghouse Electric Motor, 53

Wheat Produced, 209

Whitney Invents Cotton Gin, 423

Willis Invents Platinotypes, 305

Wilson’s Sewing Machine, 186

Windhausen Cold Storage Device, 445

Winsor Introduces Gas in London, 330

Winton Automobile, 269

Wire Bending, 388

Wire Fences, 388

Wireless Telegraphy, 26

Wood Pulp, 161

Woodruff Sleeping Car, 131

Wood Turning, 368

Woodworker, Universal, 367

Woodworking, 360-370

Woodworth Wood Planer, 367

World’s Blast Furnaces, 375

X-Rays, 319

X-Ray Apparatus, 324

X-Ray Focus Tube, 326

X-Ray Photograph, 322

X-Ray Surgery, 325

Yerkes Telescope, 287

Yost Typewriter, 180

Zoetrope, 297