Petrificata Derbiensia V1: Or Figures And Descriptions Of Petrifactions Collected In Derbyshire (1809) is a book written by William Martin. The book is a comprehensive guide to the petrifactions found in Derbyshire, England. It includes detailed descriptions and illustrations of the fossils found in the region, as well as information on their geological context and formation. The book is an important resource for geologists, paleontologists, and anyone...