28 MUSEUM OF COMPARATIVE ZOOLOGY. [May, 



From T. A. Conrad, as gift. — Some 350 specimens of United 

 States tertiary fossils, identified by himself. 



From L. E. Hicks, in exchange. — A lot of palaeozoic fossils, from 

 Ohio. 



From Oliver N. Bryan, in exchange. — 193 tertiary fossils, from 

 Maryland. 



From France. — A lot of anthropological specimens. 



Since November 10th I have been almost incessantly occu- 

 pied in re-arranging the Museum library. The work is going 

 on steadily, and promises, when completed, to give greatly in- 

 creased facility in consulting its treasures. 



The recent accessions of standard scientific works, periodi- 

 cals and pamphlets are considerate. The collection of books 

 on entomology, made by Dr. Zimmermann, having been lately 

 secured by purchase, has been duly transferred to the library. 

 There have also been various additions by exchange. The 

 largest additions, however, have come as gifts from Professor 

 Louis Agassiz and from Mr. Alexander Agassiz, the very valu- 

 able private library of the former being now in process of 

 transfer to the Museum. 



When the new organization of the library is completed, and 

 the many additions are properly entered and arranged, the 

 plan and results will be duly reported. 



Report on Fossil Vertebrates, by Dr. G. A. Maack. 



The progress made during the past year may be seen by the 

 following statement : — 



(A.) The whole collection of fossil Vertebrates, which I 

 found at my arrival in Cambridge scattered over the Museum 

 in various cases and boxes partly not unpacked, is brought at 

 present not only into such order as is necessary for scientific 

 study, but is also so exhibited that every visitor can see what 

 kind of specimens belonging to this department our Museum 

 has in its possession. The time and labor required for this 

 work may be estimated by the fact that every fossil had to be 

 cleaned in order to show its natural appearance. 



Without too many details, allow me to state the following 

 results : — 



