Printer errors: A number of printer errors have been corrected. These are marked by light underlining and a title attribute which can be accessed by hovering with the mouse. For example, text. In Chapter VIII, sections VII onwards were incorrectly numbered one greater than they should have been. This has been fixed. In addition, some punctuation errors have been corrected, but inconsistent hyphenation has been left as in the original.
Accessibility: Expansions of abbreviations have been provided using the <abbr> tag, and changes in language are marked. The following accesskeys are provided:
