From one of our members:

This is a somewhat rare/very useful book.

Apparently a few hundred copies of An Illustrated Guide to the Protozoa (2nd edition) are now available on Amazon. https://www.amazon.com/Illustrated-Guide-Protozoa-Society-Protozoologists/dp/B000N7O6MI

New and in there original plastic. Apparently the bookstore/morgue acquired them from a guy who had acquired hundreds of them from the Protozoologist Society.