Obvious typographical errors and punctuation errors have been corrected after careful comparison with other occurrences within the text and consultation of external sources. Except for those changes noted below, all misspellings in the text, and inconsistent or archaic usage, have been retained. Pg 8: '(fig. a)' replaced by '(Fig. A)'. Pg 8: '(fig. b)' replaced by '(Fig. B)'. Pg 9: '(fig. 2)' replaced by '(Fig. B)'. Pg 9: 'positions M and' replaced by 'positions M^1 and'. Pg 10: '(See figure.)' replaced by '(See Fig. C.)'. End of Project Gutenberg's Use of Mines in Trench Warfare, by Anonymous