Zoonomia; or the Laws of Organic Life (1794-96) is a two-volume medical work by Erasmus Darwin dealing with pathology, anatomy, psychology, and the functioning of the body. Its primary framework is one of associationist psychophysiology. The book is now best remembered for its early ideas relating to the theory of evolution, specifically forms of developmentalism similar to Lamarckism. However, despite Erasmus Darwin's familial connection as grandfather to Charles Darwin, the proto-evolutionary ideas in Zoonomia did not have a lasting influence.