Diagrams have been moved next to the text which they illustrate, and may not match the page numbers in the List of Illustrations. Punctuation in the index has been regularised without comment. Some index entries have no page number. The text following "see Diagram 5" on p. 71 does not obviously relate to that diagram.

The following apparent errors have been corrected:

• p. 12 "Tillet" changed to "Tillett"
• p. 96 "be comparatively, feeble" changed to "be comparatively feeble,"
• p. 118 "ilth" changed to "filth"
• p. 163 "anounced" changed to "announced"
• p. 169 "Meyer" changed to "Meyer."
• p. 169 "Hon Dadabhai" changed to "Hon. Dadabhai"
• p. 169 "Anenrin" changed to "Aneurin"
• p. 171 "Wililams" changed to "Williams"

The following are used inconsistently in the text:

• goodwill and good-will
• Mr and Mr.
• network and net-work
• overcrowded and over-crowded
• playgrounds and play-grounds
• s and s.
• shopkeepers and shop-keepers