Variations in spelling and hyphenation remain as in the original unless noted below.
- Page 20, period added after “Fig” (“In Fig. 18 is shown an example”).
- Page 33, superfluous word “to” removed (“B is a good one to use”).
- Page 34, “Fig, 39” changed to “Fig. 39.”
- Ads section, “books” changed to “book” (“The price of each book”).
- Ads section, period added after “Locomotive Building, Part V.”
- Ads section, period added after “Automatic Screw Machine Practice, Part V.”
- Ads section, “Stuffiing” changed to “Stuffing” (“Volume of Cylinders; Stuffing Boxes”).
- Ads section, period added after “No.” (“Reference Series No. 64.”).
Original scans of this book can be found [here].