10 ANNUAL EEPOET SMITHSONIAN INSTITUTION, 1916. 



the Quakertown and Doylestown quadrangles, which lie to the east 

 of the Reading. 



A brief visit was made to a newly discovered cave near Lurich, 

 Va., where the cave marble was reported to be of economic im- 

 portance. This view proved to be unjustified, but some unusual 

 stalactitic formations were found, two specimens of which were 

 obtained for the Museum collections. 



EXPEDITION TO BORNEO AND CELEBES. 



As the result of zoological explorations carried on by Mr. PI. C. 

 Raven in Celebes, through the generosity of Dr. W. L. Abbott, the 

 Museum has received 464 mammals, 870 birds, 50 reptiles, and some 

 miscellaneous specimens. The mammals and birds are of great 

 value as the first adequate representation of a fauna that has par- 

 ticular interest in connection with previous work in other parts 

 of the Malay Archipelago. Early in the summer of 1915 Mr. Raven 

 returned to America and spent several months on vacation and in 

 preparing for further explorations in Celebes and other parts of the 

 East Indies. Dr. Abbott has offered his continued support to this 

 work. Mr. Raven left Washington for the East by way of Japan 

 and Singapore, about the middle of October. Two months later 

 he reported from Buitenzorg, Java, that he was making good prog- 

 ress toward the collecting ground. 



EXPLORATIONS IN CHINA AND MANCHURIA. 



Zoological explorations, mentioned in previous reports, have been 

 continued in China and Manchuria by Mr. Sowerby through the 

 generosity of a friend of the Institution who desires to remain un- 

 known. During July, August, and September, he made an expedi- 

 tion to the lower reaches of the Sungari River and the I-mien-po 

 district in north Manchuria, where he succeeded in collecting some 

 interesting specimens of mammals, birds, and fishes to be for- 

 warded to the Institution. 



EXPLORATIONS IN EASTERN SIBERIA. 



In the summer of 1915 Mr. Copley Amorj", jr., returned from the 

 northeast coast of Siberia, where for about a j^ear he had been 

 gathering zoological material in connection with a party under 

 Capt. John Koren. As his part of the results of the expedition Mr. 

 Amory turned over to the National Museum 365 mammals, 264 birds, 

 and various miscellaneous specimens principally of plants, fish, and 

 birds' eggs. Most of this material was prepared by Mr. Amory him- 

 self, though various members of the expedition contributed to the 

 collections of both mammals and birds. Among the mammals, about 



