Punctuation and spelling were made consistent when a predominant preference was found in this book; otherwise they were not changed.

Simple typographical errors were corrected.

Ambiguous hyphens at the ends of lines were retained.

Page 90: "workshops" was misprinted as "workships".

Page 216: "A little later" was misprinted as "latter".

Page 267: "sections-commanders" was printed that way.