@book{bhlitem30485, title = {Proceedings of the Academy of Natural Sciences of Philadelphia }, volume = {v.55 (1903)}, copyright = {NOT_IN_COPYRIGHT}, url = {https://www.biodiversitylibrary.org/item/30485}, note = {https://www.biodiversitylibrary.org/bibliography/6885}, publisher = {Philadelphia, Academy of Natural Sciences of Philadelphia, }, author = {Academy of Natural Sciences of Philadelphia.}, year = {1903}, pages = {980}, keywords = {Natural history|Natuurwetenschappen|Periodicals|Science}, }