580 PROCEEDINGS OF THE ACADEMY OF [DeC, 



the ensuing year, and to provide much needed exhibition and storage 

 cases in the various departments. 



During the past year the Curators have purchased three large 

 mahogany and plate-glass exhibition cases, one for a group of buffalo 

 and two for the collection of wood of native forest trees. Two 

 horizontal oak cases have also been procured for the William S. Vaux 

 archaeological collection, as well as eighteen metal storage cases, 

 450 trays and 100 insect boxes. 



Mr. Clarence B. Moore continued his explorations among the 

 Indian mounds of the Southern States, the results of which have been 

 generously added to the Clarence B. Moore Collection. 



A valuable collection of Antarctic material obtained on Sir Ernest 

 Shackleton's expedition was presented by Mr. John H. McFadden. 

 The framed photographs of scenery and animals have been placed 

 on exhibition in the lower hallways and the other specimens 

 arranged in the several departments. 



Leave of absence was granted to several members of the Museum 

 staff for the prosecution of field work. Through the liberality of 

 Mr. Morgan Hebard, Mr. J. A. G. Rehn was enabled to accompany 

 him on a two months' trip through the Gulf States from northern 

 Florida to eastern Texas, for the purpose of studying the Orthoptera 

 of the region, one-half of the material obtained becoming the property 

 of the Academy. 



Dr. Henry A. Pilsbry spent the greater part of August and Septem- 

 ber in an exploration of the Black Range of New Mexico, obtaining 

 large series of land mollusks, part of them new to science, as well as 

 collections of reptiles and plants. 



Mr. Stewardson Brown accompanied Dr. and Mrs. N. L. Britton , 

 on a botanical expedition to Porto Rico, and Dr. Witmer Stone 

 did some general collecting in California and Minnesota, incidental 

 to attending the. meeting of the American Ornithologists' Union 

 in San Francisco. 



The usual amount of local field work was also carried on. 



Details of Museum work in the various departments follow. 



Mammals. 



A fine group of three buffalo, a bull, cow and calf, which had been 

 previously mounted, was arranged in a large exhibition case secured 

 during the year. It adds much to the attractiveness of the mammal 

 hall. 



The skeletons of the Right, Hump-back and Sperm Whales have- 



