This book is very hard to find. If you do find one, like the one I purchased for $98 on Amazon, you may find it so fragile that you dare not open it.

However, I have been able to acquire a reproduction made by the Soil and Health Library for the purpose of research and study. It is stored in a password-protected area of this website, but if you would like to read it for educational purposes, you may use the following username & password when required:

Username = private
Password = papers

Use the above when asked for it at the following links:

• Book for reading on a computer or tablet

• Book formatted for use on a smart phone