This directory contains names of and information on the Vivisectors in Europe. It was written for the people who opposed the brutality of performing scientific experiments on innocent animals. The author put the book together after recognizing that it was impossible to retain all Vivisectors' names or attach their particular class of experiments to them. He wanted to show the readers the evidence of the extent to which this brutality existed in Europe as name after name of these notorious vivisectors appeared in the directory.