Wood, Light & Co.: 222. Woodruff & Beach: 165. Woodward & Powell Planer Co.: 224. Woodworking machinery: Bramah, 18, 19, 24; Bentham, 24, 25; Brunel, 31; in Massachusetts, 229. Worcester, Mass.: 127; tool builders in, 219-226; early textile shops of, 220; gun makers in, 226. Worm-geared tilting pouring-ladle, Nasmyth’s: 91-92. Worsley, S. L.: automatic screw machine, 208. Wright, Sylvester: 200, 228. Yale & Towne Manufacturing Co.: 258. Transcriber’s Notes Inconsistencies in spelling, hyphenation, etc. have been retained, in particular in quoted material. Minie rifles and Minié rifles both occur in the text. Depending in the hard- and software used to read this text and their settings, not all elements may display as intended. Page 20, Group portrait Eminent Men of Science: there are 50 people in the portrait, but only 48 are identified in the accompanying list. Page 217, ... he and his brother, Ziba Gay, ...: also referred to as Zeba Gay in this text. Page 223, Figure 45: The source document does not show any links to or from the entry A. F. Prentice. Page 235, F. J. Kingsbery, Sr. and F. J. Kingsbury, Jr.: as printed in the source document; either one may be an error or misprint. Index: sorting errors have not been rectified. Changes made Footnotes, illustrations and charts have been moved out of text paragraphs; footnotes have been renumbered consecutively throughout the book (and footnote references have been adjusted where necessary). Some obvious minor typographical and punctuation errors have been corrected silently. Apart from the first one (Fig. 5), the “genealogical charts” are too intricate and complicated to be represented completely in this text. Instead, the charts have been transcribed, and the relationships between individuals and companies are indicated by numbers, with numbers between * and between # indicating the start and the end of the arrows used by the author, respectively. List of names after page 20: Patrick Millar changed to Patrick Miller. Index: the inconsistent lay-out has been standardised; some entries (mainly proper names) have been changed to conform to the spelling used in the text.