Inconsistent spelling and hyphenation have been retained, except as mentioned below. The use of (linear) feet as unit of area has not been corrected. Inconsistent indentations have not been standardised.
Enlarged plates are available in the browser version, available at www.gutenberg.org.
Page 18-20: There is no separate description for Number 82.
Page 38, Number 277, cross bar A: the letter A is missing from the illustration.
Page 168 (plate) and Fig. 1372: the angle 60° was not clearly visible in the source document.
Page 218, Number 1747, screen A: the letter A is missing from the illustration.
Page 220, Number 1769, ... and other machinery: possibly a mistake for ... and other materials.
Page 228-230, Number 1854: there is no description for this item; presumably it is the same as that for Number 1855 (Bevilled flat iron).
[Sections 107] and [108] may be found at the end of Part II.
Changes made: