@book{bhlitem38485, title = {Proceedings of the Academy of Natural Sciences of Philadelphia }, volume = {v.53 (1901)}, copyright = {NOT_IN_COPYRIGHT}, url = {https://www.biodiversitylibrary.org/item/38485}, note = {https://www.biodiversitylibrary.org/bibliography/6885}, publisher = {Philadelphia, Academy of Natural Sciences of Philadelphia, }, author = {Academy of Natural Sciences of Philadelphia.}, year = {1901}, pages = {976}, keywords = {Natural history|Natuurwetenschappen|Periodicals|Science}, }