Armstrong Field Gun 287 Rodman Gun 288 Old Smooth-bore Mortar 289 Spencer Carbine 291 Metallic Cartridge of 1864–65 292 Prismatic Powder 298 Mortar on Revolving Hoist. _Full page_ 299 Modern Shrapnel 301 Krag-Jorgensen Rifle 302 Penetrating Power of Guns and Bullets. _Full page_ 303 Gatling Gun 304 Nordenfeldt Rapid Fire Gun 305 Soil Pulverizer. Furnished by author 309 Columbia Harvester and Binder. Furnished by author 311 Improved Thresher, with Blower and Self-feeder. Furnished by author 312 Automatic Stacker with Folding Attachment. Furnished by author 313 Disc Harrow. H. P. Denocher & Co., Hamilton, Ont. 314 Acme Harrow. Furnished by author 315 Double Corn Cultivator. Long-Alstatten Co., Hamilton, Ont. 317 Modern Clover Huller. Gaar, Scoot & Co., Richmond, Ind. 319 Hereford Cow, “Lady Laurel.” Furnished by author 320 Group of Aberdeen-Angus Cattle. Courtesy of D. Bradford & Son, Aberdeen, O. 321 Jersey Cow, “Ida,” of St. Lambert. Miller & Sibley, Franklin, Pa. 322 Poland-China Hog. Furnished by author 323 Merino Sheep. John Pow & Son, Salem, O. 325 Double Corn Planter. H. P. Denocher & Co., Hamilton, Ont. 326 Hand Garden Plow. H. P. Denocher & Co., Hamilton, Ont. 327 Success Anti-Clog Weeder. D. Y. Hallock & Co., York, Pa. 331 Aspinwall Potato Planter. Furnished by author 335 Brooklyn Suspension Bridge. _Full page_ 341 The Niagara Railway Arch. Courtesy of Grand Trunk R. R. _Full page_ 343 The Firth of Forth Bridge, General View. Credit “Bridges,” Chicago. _Full page_ 344 Pecos River Viaduct 345 Formal Opening of Suez Canal 347 Manchester Ship Canal 349 Complete Rock Cut Chicago Drainage Canal. Courtesy of Lidgerwood Man. Co. _Full page_ 351