Acknowledgment

The Editor wishes to express his gratitude and appreciation to the following, to whom he is indebted for much valuable assistance in the form of illustrations and special information:


Transcriber’s Notes

Where photographs or drawings contain small text, moving the pointing device over the illustration will display the text within the illustration. This may not work on all devices.

This e-book uses the text of the original printed work, including all inconsistencies in spelling, capitalisation, lay-out, hyphenation, etc. Examples are can not, cannot; æstivation, Aestivation; ax, axe; Buenos Aires, Ayres; Hong Kong, Hongkong; saltpeter, saltpetre, etc. The spelling of non-English words (Abbe, Lumiere, Cinematograph) has not been corrected.

Some full-page illustrations have boxes around them, others do not. This has been copied from the original work.