Transcriber's Note: 'M', in the context of lumber measurement, means '1000 feet'. From 'Handwork in Wood', Chapter III, page 48. Also (ibid): "There are several methods of measuring lumber. The general rule is to multiply the length in feet by the width and thickness in inches and divide by 12, thus: 1" × 6" × 15' ÷ 12 = 7½ feet." In the interests of clarity, some Illustrations have been moved closer to their descriptive text. Hyphenation and spelling are not uniform throughout this book, e.g., 'sapwood' and 'sap-wood' both occur; '_Columbian Timber-beetle_' and 'Columbian timber beetle' occur in the same paragraph. Chapter II has three types of footnotes, with different notations. References to the author's previous book, being short, are placed at the end of the paragraph; numbered technical or tabular footnotes, or footnotes referencing other publications are collected at the end of the Chapter, before the Chapter Bibliography; and Chapter Bibliography footnotes are placed at the end of the Chapter Bibliography. In later Chapters, numbered footnotes are placed either at the end of the Chapter (before the Bibliography) or at the end of a relevant section of a Chapter. Chapter III lists 67 trees; The (following) Lists from the Jesup Collection list 66 trees, including the 'tied place' trees. The tree missing from the Jesup Collection is No. 18: Western Hemlock, or Black Hemlock. Damaged or missing punctuation has been repaired. Page 18: 'sumac' and 'sumach'. Both spellings correct. Also 'sumak', shoomak. From Arabic 'summ[=a]q'. Page 19: 'charactistic' corrected to 'characteristic' ... "and give the characteristic pleasing "grain" of wood." Page 23: inconsistent spelling--_tracheæ_, tracheae. The two spellings occur in the book; also trachæids, tracheids. All have been retained. The author's bibliography is extensive. Page 124 etc.: The Allegheny Mountain Range (also spelled Alleghany and Allegany, ~Wikipedia). Page 143: 'distinguised' corrected to 'distinguished' ... "Not distinguished from white oak in the market." Page 180: diameter, '1"-6", even 5';' corrected to 'diameter, 1'6"-3'6", even 5';' (Wikipedia) Page 182: 'scambucifolia' corrected to 'sambucifolia' ... "_Fraxinus nigra_ Marshall. _Fraxinus sambucifolia._" Page 186: 'cleavabilty' corrected to 'cleavability' ... "refers to the cleavability of the wood;" Page 268: Fig. 118 text: Basswood, 1st and 2d, 1" x 8" and up by x 00". and: White pine, rough uppers, 1" x 8" and up x 00'. This is as printed; the transcriber has no idea what was meant by '00"' and '00'', or what it should have been. Page 292: 'miscroscopic' corrected to 'microscopic' ... "Of microscopic features, the following only have been referred to:" Page 304: 'Agaricus mellens' corrected to 'Agaricus melleus'. The (archaic) U.S. American spellings, 'drouth' (='drought'), 'thoroly', 'tho', 'altho', 'tire' (='tyre'), etc., are correct.