traveling crane, 77, 80; mill machinery, 76. Bond, George M.: Rogers-Bond Comparator, 180-182. Boring machines: Smeaton’s, 2, 13; Wilkinson’s, 3, 10, 11, 12, 13, 60; in 18th century, 4. Boston, Mass.: heavy forge, 117. Boston & Worcester R. R.: 220. Boulton, Matthew: 145; on Wilkinson’s boring machine, 3; on Wilkinson, 145. Boulton & Watt: 3, 11, 46, 55; relations with Wilkinson, 12, 13. Bow-string truss: 82. Boye & Emmes Machine Tool Co.: 268, 271. Bramah, Joseph: 7, 8, 15, 107; estimate of, 19, 20; invention of slide-rest, 6, 36; planer, 50; hydraulic press, 18; machine for numbering banknotes, 19; woodworking machinery, 18, 19, 24; other inventions, 18; relations with Maudslay, 17, 19, 33, 34; with Watt, 18; with Clement, 19, 58. Bridgeport Brass Co.: micrometer, 211-213. Bridgeport Machine Tool Co.: 184. British Small Arms Commission: 138, 140, 141. Brooker, Charles F.: 236. Brown, David: 126, 202. Brown, Capt. James S.: 124. Brown, Joseph R.: 126, 202; estimate of, 215; “Universal” miller, 138 note 163, 196, 208-209; linear dividing engines, 202, 204-205, 206; vernier caliper, 203; formed milling cutter, 206, 207; improvements on turret screw machine, 207; universal grinder, 214. Brown, Moses: textile industry, 120, 121. Brown, Sylvanus: 124. inventor of slide-rest, 6; slide lathe, 120. Brown Hoisting Machine Co.: 258. Brown & Elton: wire and tubing, 233. Brown & Sharpe Manufacturing Co.: 125, Chapter XVI; J. R. Browne & Sharpe, 202, 204; “Universal” miller, 138 note 163, 196, 208; linear dividing engines, 206; precision gear cutter, 206; turret screw machines, 207-208; limit gauges, 210; micrometer caliper, 211-213; cylindrical grinder, 213; automatic gear cutters, 214. Brunel, Sir Isambard K.: 32. Brunel, Sir Marc I.: 7, 26, 27, 31, 49, 107; slide-rest, 6; inventions, 27; Portsmouth block machinery, 8, 9, 22, 26, 27, 28. Bryant, William L.: chucking grinder, 200. Buchanan: English writer, 50. Builders Iron Foundry or “High Street Furnace”: 125. Bullard, E. P.: 183-184. vertical boring and turning mill, 184-185. Bullard Machine Tool Co.: 184. Burke, William A.: 253; Amoskeag Manufacturing Co., 217; Lowell Machine Shop, 217, 218. Burleigh, Charles: rock drill, 228. Burlingame, L. D.: history of micrometer, 213. Burton, James H.: Enfield gun machinery, 140.