The book Topoi: The Categorial Analysis of Logic by Robert Goldblatt has now been reprinted as a Dover paperback, and is currently available for under US$19 from http://store.yahoo.com/doverpublications/0486450260.html or Amazon http://www.amazon.com/gp/product/0486450260/ref=wl_it_dp/ 102-9723571-5488919?% 5Fencoding=UTF8&colid=OXWPP5ID1A26&coliid=I1D9VOS1VZB8DY&v=glance&n=2831 55 or Walmart http://www.walmart.com/catalog/product.do?product_id=4531888 [apologies to those whose received an empty message when this was sent yesterday]