20 THE BUREAU OF SCIENCE 



increase of sea products, the relation of insects and birds to agri- 

 culture and to man and domestic animals, the better utilization 

 of products such as sugar cane and the nipa palm, the adaptation 

 of soils to crops, etc., and to introduce new and better industries 

 of immediate and vital interest to the inhabitants of these Inlands, 

 it will be possible to bring about needed reform.s and an im- 

 provement of their economic conditions much more rapidly. 

 This has been done to a limited extent among the sugar growers 

 of Negros. Their appreciation of this work and their desire for 

 further help of this kind is conclusively shown in the letters in- 

 cluded in this report. 



With its limited personnel and the scientific staff overloaded 

 with routine work, it is impossible for the Bureau of Science to 

 devote time to the proper demonstration and explanation of the 

 information that it has available. On the other hand, the Bureau 

 of Science does want the people to understand and appreciate its 

 work, for only through the people's confidence and sympathy can 

 the Bureau best fulfill its functions. There is immediate need 

 for a number of statisticians and demontrators to place before 

 the public the collected data and the results of experiments, to 

 demonstrate new and improved methods, and to introduce new 

 industries. It seems reasonable to suppose that the extra" ex- 

 pense involved in this form of publicity would be amply justified. 



BIOLOGICAL LABORATORY 



Personnel. — Dr. J. A. Johnston was absent on leave from 

 October 4, 1915, to April 1, 1916. Dr. H. W. Wade reported for 

 duty February 2. Dr. 0. Schobl, who resigned while on leave, 

 accepted reappointment and returned to duty on March 7. Dr. 

 B. C. Crowell was transferred to the University of the Philip- 

 pines, where he has been detailed for half time for several years. 

 Dr. E. H. Ruediger was retired on April 25, since which time 

 the section of sera and vaccines has been in charge of Doctor 

 Schobl. Doctor Panganiban, veterinarian, and Doctors Navarro, 

 Monserrat, and Liboro, physicians, have been appointed and 

 assigned to duty in the laboratory. 



Routine. — After a period of quiescence during the first three 

 months cholera again assumed noticeable proportions in April 

 and continues up to December 31. The work of this laboratory 

 has convincingly shown the continuance and spread of the di- 

 sease to be due to "carriers." In this connection, in cooperation 

 with the Philippine Health Service, a systematic examination 



