Inconsistent spelling and hyphenation in the original work have been retained.
Depending on the hard- and software used to read this text and their settings, not all lay-out, characters and symbols may display as intended.

Changes made to the text:
Illustrations and tables have been moved out of the text, and footnotes have been moved to directly under the paragraph or table they refer to.
Obvious punctuation and typographical errors have been corrected silently.
In some formulas × has been inserted for consistency.
Page vii: battaillons Kommandeur changed to Bataillonskommandeur
Page x: 1 in 20 changed to 1 in 10 (as discussed in the remainder of the paragraph)
Page 24, table: ·64 changed to 7·64
Page 73: all the air effected changed to all the air affected
Page 110: Hargraves’ changed to Hargrave’s
Page 128: over estimated changed to over-estimated.