54 Report of the President 



graphed a minute fossil skull, of extraordinary scientific value, 

 found by Mr. Granger in New Mexico during the summer. 

 The usual number of field photographs and a number of 

 museum exhibits have been added to the files. 



Special Acknowledgments. — The skeleton of Eohippus, 

 found in 1910, has been recorded as a gift of Frank K. Sturgis, 

 in recognition of his contributions toward the field work which 

 resulted in its discovery. This specimen is now installed in the 

 Horse Alcove. To Langdon Gibson the Museum is indebted 

 for a fossil walrus skull, dredged in Penobscot Bay. 



Acknowledgments are due to the Trustees whose continued 

 interest and generous support have made possible the main- 

 tenance and success of the field and laboratory work. 



Horse Evolution Series. — The alterations and additions 

 in this alcove are more advanced than elsewhere toward what 

 we regard as the new ideals of exhibits. The methods of 

 paneling the cases, of unifying and simplifying the exhibits, 

 and of emphasizing especially some one principle in each alcove, 

 have proved fairly satisfactory, although the rearrangement 

 is not yet complete. 



The Guide Leaflet on the Evolution of the Horse has been 

 revised and improved, especially as to the illustrations, so as 

 to conform to the new arrangement of the alcove, and the new 

 edition is now in press. 



EXISTING REPTILES, BATRACHIANS, RECENT AND 



EXTINCT FISHES 



Bashford Dean, Curator* 



Department of Ichthyology and Herpetology. — Dur- 

 ing the past year this department has made progress in all 

 its activities: in enlarging its exhibits; in adding to, and 

 caring for, its reserve collections; in broadening its exchange 

 relations with other museums, and in the scientific study of 

 its collections. Though one of the youngest departments in 



* During the leave of absence of Dr. Dean, Louis Hussakof, Associate Curator of Fishes, 

 has been Acting Curator of the department. 



