Manual of Collodion Processes

Mr. Berkhofer has written and published a wonderfully written and illustrated manual you can purchase your own copy here:

Please note that this short manual is intended to be a handy guide to proven formulae and processes that George collected over his 60 years working in this medium. This is not a book on the history of Wet Plate Photography. Perhaps he says it best in his introduction in the manual:

"The little booklet you have before you is precisely that. It is a small handbook on the wet collodion process of photography. It contains no section on the history of the process, as it is assumed that you would not be reading this if you did not already know something about the process. The purpose of this composition is to try to bring before you some useable formulae, based on, or reproducing, published 19th century originals."