@article{NARMS:SourceID:150205, author = {Gray, J.E.}, journal = {Annals of Philosophy, new series}, note = {alternate Link: https://www.biodiversitylibrary.org/page/2531608}, pages = {10:423-431}, title = {An attempt to divide the Echinida, or Sea Eggs, into natural families}, url = {https://archive.org/stream/annalsofphilosop10lond#page/422/mode/2up}, year = {1825} }