TWELFTH ANNUAL REPORT 55 



Typhoid, paratyphoid, and cholera reagents (killed cultures) 

 for agglutination; agglutinating sera, in liquid and in dried 

 form, for the purpose of diagnosing infectious diseases and iden- 

 tifying bacteria; as well as normal sera of horse, ox, sheep, and 

 goat were always kept on hand. Other sera, such as those of 

 dog, cat, rabbit, and guinea pig, are supplied on request. Sterile 

 blood or washed blood corpuscles of horse, ox, sheep, goat, rabbit, 

 and guinea pig are also furnished on request. 



Rabies. — The work on rabies was continued throughout the 

 year. Thirty-six patients applied for the Pasteur treatment 

 during the year. 



BOTANICAL SECTION OF THE BIOLOGICAL LABORATORY 



Personnel. — Mr. E. D. Merrill, chief of this section, was de- 

 tailed in July, 1912, for one-half of his time to duty in the 

 University of the Philippines as acting head of the department 

 of botany. College of Liberal Arts, with the title of associate 

 professor of botany. The chief objection to the plan is that it 

 has decreased the time available for research work. Dr. C. B. 

 Robinson, formerly economic botanist, who resigned August 18, 

 1911, was reinstated, reporting for duty November 15, 1912, 

 which partially compensates for the loss of time for research by 

 Mr. Merrill. At this time the positions provided for in the 

 botanical staff being all filled, Doctor Robinson's appointment 

 was made possible by arrangement with the University of the 

 Philippines, by which the Bureau of Science undertook to pro- 

 vide, by detail, an assistant in botany for the College of Liberal 

 Arts. Mr. P. W. Graff, mycologist, was detailed to give the 

 necessary assistance in the classes in botany, acting as assistant 

 in two laboratory courses. 



The herbarium. — The growth of the herbarium has been em- 

 inently satisfactory, but the following summary does not include 

 about 1,100 numbers secured in Palawan. A total of 12,807 

 specimens have been poisoned, mounted, and added in the past 

 year from the following sources : 



Collections of employees of the Bureau of Science 5,066 



Collections of employees of the Bureau of Forestry 1,065 



Miscellaneous Philippine material, received by gift, by purchase, and 



for identification 2,799 



Extra-Philippine material received in exchange and by gift 3,877 



Total 12,807 



