McFarlan, Thomas: 268. Macaulay, Lord: on Eli Whitney, 161. Machine tools: effect of modern, 1; crudity in 18th century, 3, 4; developments of, 4, 5, 63, 107; Fairbairn on, 10; Bramah and Maudslay, 34; Whitworth, 99; Greek or Gothic style, 63; developed by cotton industry, 120. Machine Tool Works: 255. Machinist Tool Co.: 222. Madison, Wis.: 276. Manchester, N. H.: 123, 127; founding of, 217. Manchester Locomotive Works: 217. Manchester pitch: 70 note 66, 80. Manville, E. J.: 237. Map of tool building industry: Fig. 56. Marshall, Elijah D.: 254. Marvel, C. M., & Co.: 219. Mason, William: 170, 173-174. Massachusetts Arms Co.: 162. Maudslay, Henry: 7, 8, Chapter IV; estimates of, 9, 43, 44, 45, 48, 49, 88; taps and dies, 10, 42, 88; Portsmouth block machinery, 8, 29, 35; screw thread practice, 10, 40, 42, 88, 101; cup-leather packing, 18, 34; the slide-rest, 6, 35, 36, 38, 40, 43, 49, 143; screw-cutting lathe, 35, 40, 41, 42, 50, 120; engine improvements, 43; work on plane surfaces, 44, 45, 99, 100. Maudslay & Field: 8, 19, 35, 58, 98; influence on English tool builders, 46; Moon’s description of shop, 46-48. Maynard Rifle Co.: 161. Mechanics Machine Co.: 274. Merrick, S. V.: introduces steam hammer into United States, 96, 257. Merrimac Valley: textile works, 124, 127; shops of, 216-219. Michigan Twist Drill & Machine Co.: 266. Midvale Steel Co.: 250. Miles, Frederick B.: steam hammer, 255. Mill, Anton: 272. Miller, Patrick: 82. Miller, Phineas: partner of Eli Whitney, 148-149, 153, 154. Miller & Whitney: 149, 152. Miller, universal: origin of, 5, 138 note 163, 208-209. Milling cutter, formed: 206-207, 208. Milling machine: Whitney, 142; first in Hartford, 170, 194; Lawrence, 191; Lincoln, 137, 165-166, 208. Millwork: Chapter VI; Nasmyth on, 71. Milwaukee, Wis.: tool builders in, 276-277. Milwaukee Machine Tool Co.: 277. Moen, Philip L.: 225. Montanus, Philip: 271. Moody, Paul: expert in cotton machinery, 218. Moore & Colby: 252. Morris, I. P., & Co.: 257, 258. Mueller, Oscar: 271. Murdock: 55; D-slide valves, 51. Murray, Matthew: 7, 54-57, 107; planer, 50, 51, 55, 57; D-slide valve, 55; steam heating, 56; locomotives, 56; influence on flax industry, 56.