Jan., 1912. Annual Report of the Director. 119 



ites were received. By collection about 400 specimens of invertebrate 

 fossils from Illinois and Kentucky were obtained. By purchase were 

 obtained an exceptionally fine slab of Ordovician crinoids from Ohio 

 and three fine specimens of vivianite from Colorado. The total num- 

 ber of accessions added to the Zoology collections is 1,381, of which 

 357 are mammals, 485 birds, and 539 birds' eggs. These are sum- 

 marized as follows: from Museum expeditions 249 mammals, 464 

 birds, and 7 birds' eggs; by purchase 100 mammals, 9 birds and 532 

 birds' eggs; by gift 8 mammals and 11 birds; by exchange i bird. Ex- 

 cept for the work on the Panama expedition there have not been many 

 additions made to the collection of fishes and reptiles during the year; 

 but the Panama expedition in connection with the Smithsonian has 

 largely increased the collection, at a minimum cost. No noteworthy 

 acquisitions to the collection in the Division of Entomology can be 

 recorded for the period of time under consideration. As the following 

 summary will show, no insects were purchased, neither were there any 

 rarities among the limited number of specimens received from various 

 sources. The insects accessioned during the year 191 1 were 428 local 

 insects collected by William J. Gerhard, 215 local insects collected by 

 A. B. Wolcott, 49 insects collected on Museum expeditions and 64 

 insects presented by various donors. 



EXPEDITIONS AND FIELD WORK. — Aftcr Completing the work among the 

 Bagobo referred to in the last Report Mr. Cole, in continuing the 

 ethnologic survey of the Philippine Islands under the fund provided 

 by Mr. Robert F. Cummings, went to the Manobo, a tribe living along 

 the Padada River and in the Malalag swamps of the Davao district. 

 From them he went to the Bilaan, a little -known tribe of the interior. 

 Owing to a serious religious outbreak among the members of these 

 two tribes, intensive study was greatly hindered, but considerable 

 headway was made in the study of their laws and religion, particularly 

 as related to their custom of annual human sacrifices. A collection 

 of about 550 pieces was secured from that district. A small collection 

 was also obtained from the Divavaon, an interior tribe. The last 

 collection was made on the southeastern coast of Mindanao, among 

 the Mandaya. The people of this tribe live in small villages, often 

 building their houses high in the branches of trees. This tribe has a 

 rather advanced material culture, possesses many beautiful weapons, 

 and a distinctive type of dress, all of which are fully shown in the col- 

 lection. More than 400 specimens and much valuable information 

 had been secured when a severe illness caused Mr. Cole to leave the 

 district and return to the States. Among the four tribes named 

 he obtained two hundred physical measurements, three hundred 



