@book{bhlitem84763, title = {Proceedings of the Academy of Natural Sciences of Philadelphia }, volume = {v.22 (1870)}, copyright = {Not provided. Contact Holding Institution to verify copyright status.}, url = {https://www.biodiversitylibrary.org/item/84763}, note = {https://www.biodiversitylibrary.org/bibliography/6885}, publisher = {Philadelphia, Academy of Natural Sciences of Philadelphia, }, author = {Academy of Natural Sciences of Philadelphia.}, year = {1870}, pages = {212}, keywords = {Natural history|Natuurwetenschappen|Periodicals|Science}, }