In the original there were two instances of paragraph 55. The first instance has been renumbered as the ‘missing’ paragraph 54.
Paragraph 207 was not numbered in the original and has not been changed.
In the original there were 2 instances of paragraph 102, none of 103. Second instance of 102. renumbered to 103. which agrees with chapter heading.
Some illustration titles do not match the List of Illustrations.
In paragraph 44 the reference to ‘xi. of paragraph 171’ should refer to ‘xi. of paragraph 141’, and has been corrected.