Front matter
Reading edition
Transcriber's Note:
Inconsistent hyphenation and spelling in the original document has been preserved.
Obvious typographical errors have been corrected. For a complete list, please see the end of this document.
A Table of Contents has been added for the reader's convenience. There is no Chapter 13.
In the classification chapter inconsistant illustration placement has been regularized.
Click on the images to see a larger version.