An Essay on Classification illustrates Agassiz's stance as a creationist and focuses on his primary argument against change in species. Together with Methods of Study in Natural History , they are key pre-Darwinian anti-evolution collections by one of the founding fathers of American natural history. John M. Lynch has published widely both in biology and the history of evolutionary biology and is also general editor of the series Evolution and Anti-Evolution (Thoemmes Press).He teaches at Arizona State University.