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Thysanura. Standard Natural History, vol. 2, pp. 135-138. 

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The Cave Fauna of North America with Remarks of the 

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A Text-book of Entomology, pp. 72, 164, 486. 



Say, Thomas 1883 



The Complete Writings of Thoma's Say on the Entomology 

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Beitriige zur Kcnntniss kalifornischer Collembola. Bihang 

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 (Contribution from the Zoological Laboratory of Pomona College.) 



