1867.] SENATE— No. 52. 35 



corresponding catalogue, and to the tray in which the specimens 

 are contained. 



This system of records and divisions will, when fully carried 

 into effect, enable the investigator to perceive not only the 

 means in the stores with which to prosecute certain work, but 

 by the aid of the corresponding numbers, to find at once the 

 materials he requires. The same system of maps and lists will 

 serve to guide the officers of the Museum in their efforts to 

 make the collections as complete as possible, by showing those 

 points from which collections are needed. 



Eighteen exchanges, including a total of about 1,400 lots of 

 specimens, all labelled, have been forwarded in exchange to the 

 correspondents of the Museum. In addition to this, about an 

 equal quantity of specimens have been prepared for exchange 

 by division into sets, and only require packing and cataloguing 

 to fit them for use. 



There has been received from exchange, nine lots of speci- 

 mens, comprising a total of over 600 distinct species, and about 

 2,500 specimens. 



From the Thayer Expedition, collected in South America: — 

 Minerals, 1,000 specimens. Fossils about 25 species, 800 

 specimens. 



By donation we have acquired 140 species, 500 specimens. 



The thanks of the Museum are due to the following donors 

 of specimens : — 



Hartt, C. F., Student Museum C. Z. 26 species, 200 specimens 

 Taconic Fossils. 



Natural History Society, of New Brunswick, per C. F. Hartt, 

 30 species, 200 specimens Devonian plants. 



Nilsen, Mr. 1 specimen Carb. Fossil from Pennsylvania. 



Shaler, Assistant, M. C. Z. 15 species, 100 specimens. Drift Fossils. 



Uhler P. R, Assistant, M. C. Z. and Uhler, G. W. 15 species. 

 30 specimens, Fossil Plants. 



Report on the Library, by P. R. Uhler. 



The increase of the Library during the past year has exceeded 

 that of the year preceding, mainly due to the liberality of friends, 

 of the Museum. Jt would be a great satisfaction to be able to 



