Wmm WALTER a^iLLS WAlNjIIQ). 



CoscHOLOGisTS OP Dealers haviiig FRESH WATER SHELLS from any part 

 of the world, for sale or exchange, will please forward catalogues of .=pecies 

 and prices to 



CHARLES M. WHEATLEY, 



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f ikarii of tijc Puscitm 



OF 



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COMPARATIYE ZOOLOGY, 



AT HARVARD COLLEGE, CAMBRIDGE, MASS. 

 jFountretJ I)» ptfbate subscription, fn 1861. 



Deposited by Louis Agassiz. 



No. 



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diarge, 



to stu- 



it has 



ctions, 



arliest 



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lilable 



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 life urn, 



Local 



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all of 

 1 Sec- 

 privi- 

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DIRECTIONS FOR SHIPPING. 

 Correspondents in Europe are requested to mark packages as fellows :— 



" Coi chological Sedion, Academy Natural Science.i, 



rhiladelphia, 



Care of Smit'incnian Inslihition, 



Washington, D. C." 



And forward to either of the following European Agents of the Smithsonian 

 Institution :-G. Bossange & Co., Booksellers, Paris ; Dr. Felix Flugel, Leipzig, 

 Saxony; Wm. Wesley, Bookseller, 2 Queen's Head Passage, Paternoster Row, 

 London. 



American correspo.idents can forward heavy packages by express or railroad^ 

 <? Light J ackages can be sent by post office. 

 ^ ■ 



