@book{bhlitem18296, title = {The primary factors of organic evolution }, copyright = {Public domain. The BHL considers that this work is no longer under copyright protection.}, url = {https://www.biodiversitylibrary.org/item/18296}, note = {https://www.biodiversitylibrary.org/bibliography/2068}, publisher = {Chicago, The Open Court Publishing Company, 1896}, author = {Cope, E. D. (Edward Drinker),}, year = {1896}, pages = {578}, keywords = {Evolution|}, }