The Ohio State University Press Open Access Initiative

Theophrastus`s On Stones is a useful reference for all of us dealing with the early history of alchemy. Now you can get a very nice edition of it for free. Via AWOL:

The Ohio State University Press Open Access Initiative

The mission of The Ohio State University Press is to disseminate the best scholarship as widely as possible. Towards that end, we are making the complete texts of certain books available from our website. You will need the free Adobe Reader or some other PDF-enabled program to read the text.
All titles available this way, whether old or new, have gone through the exact same peer review process as our printed books. Any book that carries our imprint—no matter what medium is being used—has been approved by our Editorial Board after a thorough vetting process.

All such works remain under copyright protection and may not be used for any commercial purpose.
The Press very gratefully acknowledges The Ohio State University Libraries for funding and overseeing the digitization of these titles.

The current list includes these titles relating to antiquity: