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REPORT ON THE CONCHOLOGICAL AND PAL^ONTOLO- 

 GICAL DEPARTMENTS. 



By Charles E. Hamlin. 



During the year very extensive and important additions have 

 been made, by purchase, to the collections of Fossil Invertebrata, 

 the extent of which can at present be indicated no further than 

 by stating the number of packages received. They are : — 



Sixteen boxes specimens from the Upper Silurian and Devonian 

 strata of Schoharie, N. Y., and vicinity, being the collection of 

 Mr. Wm. D. Gebhard. 



One hundred and ninety-three boxes specimens, and thirty-three 

 large slabs and fragments, chiefly from the Lower Silurian of 

 Cincinnati and other parts of Ohio, comprising the entire collec- 

 tion of Mr. C. B. Dyer, of Cincinnati. 



Thirty-three boxes and nine barrels fossils of the Trenton 

 Limestone and Utica Slate of Central New York, from Mr. C. D. 

 Walcott, of Trenton Falls, X. Y. 



Thirty-two species, two hundred and six specimens, inverte- 

 brate fossils from Mount Lebanon, Palestine, collected by and 

 bought of Rev. William Bird. 



As the Gebhard collection came without names, the larger part 

 of February and March was given to the assortment of the speci- 

 mens and the determination of the Mollusca from the Lower 

 Helderberg groups and the Oriskany Sandstone. 



The month of April was spent by me at Cincinnati, in assorting 

 and packing the Dyer collection. This, and that of Mr. Walcott, 

 remain for the present in the packages. 



Considerable time has been devoted to the determination of the 

 Mollusca of the Bird collection, and those of another, chiefly 

 from Mount Lebanon, made by and belonging to Rev. Selah 

 Merrill. 



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