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By: Bilgram, HugoType: ArticleIn: Proceedings of the Academy of Natural Sciences of PhiladelphiaVolume: 57Series:Issue:Date: 1905Page Range: 524--524Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,Subjects:
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By: Bilgram, HugoType: ArticleIn: Proceedings of the Academy of Natural Sciences of PhiladelphiaVolume: 55Series:Issue:Date: 1903Page Range: 700--700Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,Subjects:
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By: Bilgram, HugoType: ArticleIn: Proceedings of the Academy of Natural Sciences of PhiladelphiaVolume: 62Series:Issue:Date: 1910Page Range: 271--272Publication Info: Philadelphia, Academy of Natural Sciences of Philadelphia,Subjects: