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COLEOPTERA. A study of the species of Tachys of Boreal 



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 Revision of the species of Xylina Ochs., by John B. Smith. 1900. 



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Revision of the species of Acontia Ochs.. by John B. Smith. 1900. 



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NEUROPT ERA. Descriptions of new North American Neurop- 



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Catalogue of tin- ( Monai i i I >ragonllies) of the vicinity of Philadel- 

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