10 ANNUAL REPORT OF THE 



which are in all respects masterly pieces of taxidermy, by far the 

 finest mounted fishes in the Museum. 



By purchase the Museum has acquired the W. G. Dietz collec- 

 tion of Microlepidoptera. This collection is rich in types, in 

 series of specimens, and in specimens of recently described species 

 new to the Museum. With the Chambers and Zeller material, 

 the Dietz collection makes the Museum series of Palaearctic and 

 Nearctic forms a large and important one. 



The Library consists of 49,155 volumes, and 45,535 pamphlets; 

 1,136 volumes, and 1,093 pamphlets have been added during the 

 year. 



The publications for the year include seven numbers of the 

 Memoirs, thirteen numbers of the Bulletin, and the Annual Report, 

 a total of 1,229 (907 quarto, 322 octavo) pages, and 156 (133 

 quarto, 23 octavo) plates. One number of the Bulletin contains 

 the Third annual report of the Harvard Seismographic Station, 

 and four numbers contain Contributions from the Zoological 

 Laboratory. Three numbers of the Bulletin and six numbers of 

 the Memoirs contain Reports on the scientific results of the 

 expeditions carried on under Mr. Agassiz's directions, and five 

 numbers of the Bulletin and one number of the Memoirs repre- 

 sent work based upon Museum collections. A list of these publi- 

 cations is given on pages 42-44. 



The Corporation has granted, as in recent years, the sum of 

 $350. — to assist in the publication of contributions from the Zool- 

 ogical and Geological Laboratories. 



By vote of the Corporation, (13 November 1911), "the buildings 

 of the Museum of Comparative Zoology" will be known hereafter 

 as Agassiz Hall. 



Samuel Henshaw, 



Director. 



