Front matter

Transcriber's Notes

Inconsistent spellings (e.g. depolariser & depolarizer) and hyphenation (e.g. guttapercha & gutta-percha) are retained as in the original text. Minor punctuation errors are corrected without comment. Changes which have been made to the text (in the case of typographical errors) are listed at the end of the book.

[cover image]

Table of Contents.

List of Illustrations.

Index.