23 



REPORT ON THE CONCHOLOGICAL AND PAL^ONTO- 

 LOGICAL DEPARTMENTS. 



By Charles E. Hamlin. 



Since the last annual report two large additions have been 

 made to the collections of Fossil Invertebrata. As these still 

 remain undistributed, their amount can now be indicated only 

 by a statement of the number of packages which contain them. 

 There are : — 



Sixty boxes and six barrels of specimens, chiefly from the 

 Racine Beds of the Niagara Limestone of Wauwatosa and vicinity, 

 in Southeastern Wisconsin, — being the entire collection of fossils 

 gathered during the last twenty years by Dr. F. H. Day of Wau- 

 watosa. 



Twenty-four boxes of fossils from several groups of the New 

 York Silurian System, comprising the whole collection made by 

 Mr. G. W. Taylor of Cazenovia, Madison Co., N. Y. 



Part of the month of November, 1880, was spent by me at 

 Wauwatosa in assorting, labelling, and packing the Day collec- 

 tion ; and in April last like work was done upon the Taylor 

 collection, in part at Cazenovia, but chiefly at Pulaski, N. Y. 



A large part of the year has been occupied in selecting and 

 mounting Recent and Fossil Gasteropoda for exhibition. This 

 work has been completed, and the specimens prepared have been 

 arranged in the cases recently provided for them ; much has 

 also been done in selecting, determining, and mounting Lamelli- 

 branchiata for exhibition. 



Conchological exchanges have been continued only with the 

 few correspondents from whom can be expected material adapted 

 to supply deficiencies still remaining in the Systematic Collection 

 of Recent Shells. Our consignments have been more in number 

 than the receipts, several packages having been sent in return for 

 shells received during the previous year. 



