b ANNUAL KEPOKT OF THE 



When in Iceland in 1905, Messrs. J. W. Hastings and L. J. de 

 G. de Milhau were good enough to arrange to have the Museum 

 receive a series of the birds of Iceland, and we have already as a 

 part of their gift thirty birds, either mounted or as skins. 



By the kind offices of Dr. W. E. Castle, the Museum has added 

 to its special collections two sets of specimens elucidative of Dr. 

 Castle's work in inheritance. One of these, a series of five 

 rabbits, shows the blending inheritance of ear characters with the 

 alternative inheritance of coat colors, and the other, a series of 

 Guinea-pigs, represents the fixation of an atavistic coat character, 

 similar to that of the wild Cavy, but obtained by a cross between 

 two simple color forms. Both of these series have been prepared 

 for exhibition by Mr. Nelson. 



The Museum is indebted to the U. S. National Museum for a 

 series of ninety slides of the Foraminifera, (Albatross 1891 expe- 

 dition), which formed the basis of the report of Goes, (Bull. 

 M. C. Z., March, 1896, vol. 29, no. 1); this series is identified and 

 labelled. 



The Museum is likewise indebted to Dr. E. W. Dwight for a 

 specimen of the Hawksbill turtle, to Dr. R. T. Jackson for some 

 interesting fossils, and to Mr. Junius Henderson for some fossils 

 and recent shells. 



Many of the North American mammals on exhibition have been 

 in the cases for a quarter of a century or more, so that the sub- 

 stitution of more modern mounts from fresh skins is desirable ; 

 this work is being carried on as opportunities occur, and two 

 recent accessions, a female Caribou, Rangifer caribou, presented 

 by Dr. H. B. Bigelow, and a young fawn, Odocoileus virginianus 

 borealis, a gift of Mr. Thomas Emerson Proctor, are noteworthy. 



Two new cases have been built in the African room, and the 

 rearrangement and labelling of the specimens has been continued ; 

 new accessions include a fine male Lion (purchased) and a speci- 

 men of the striking White-tailed Guereza, Colobus caudatus, a gift 

 of Mr. Thomas Barbour. 



In the South American room a large floor case has been built ; 

 for the present, this case will be devoted, one half to animals 

 peculiar to the Galapagos Islands, and the remaining half to the 

 animals of the West Indies. Some progress has been made in 

 the selection and installation of the specimens for both of these 

 exhibits. 



A series of specimens illustrative of bird architecture has been 



