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24 Rejpt. 
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Siiurawlew, G. S. Ueberwintern der Frosche. Korr. Nat. Yer. Riga, 
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Moriggia, A. Quelques experiences sur les tetards et sur les Grenouilles. 
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Erlanger, R. v. Ueber den Blastoporus der anuren Amphibien, sein 
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Marshall, A. M., & Bles, E. J. The Development of the Kidneys 
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RANIDiE. 
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