WHOLE VOL. APPLIED ENTOMOLOGY HOWARD 459 



especially by the workers in economic entomology, were made. A 

 Federal experiment station was started at Mayaguez, and the ento- 

 mological workers at this station have published many important 

 papers. Mr. O. W. Barrett held the position of Entomologist and 

 Botanist from 1903 to 1905, Mr. W. V. Tower from 1906 to 191 1, 

 Dr. C. W. Hooker in 1912, Mr. R. H. Van Zwaluwenbtirg from. 1914 

 to 1917, and Mr. Tower again from 1918 to 1924. These men have 

 all been excellent entomologists and have done valuable work. In 

 1913, Dr. E. F. Phillips of the Federal Bureau of Entomology visited 

 Porto Rico, at the invitation of the Porto Rico Experiment Station, 

 and prepared a bulletin on Porto Rican bee-keeping, published as 

 Bulletin 15 of the Station. 



The Sugar Producers Association of Porto Rico started an experi- 

 ment station at Rio Piedras in 191 1, for the purpose of studying the 

 problems of sugar cane growing. A year later the Board of Com- 

 missioners of Agriculture was created by the Porto Rican legisla- 

 ture, and a separate organization developed to study the agricultural 

 problems of the island. In the years that followed, the entomological 

 workers of both organizations did much cooperative work on the 

 insect pests of sugar cane. 



In 191 4 the Board assumed charge of the work of the Sugar 

 Producers Experiment Station and took over the entire stafif. The 

 combined organization was given the name of the Insular Experiment 

 Station of the Department of Agriculture and Labor, the name under 

 which it is now known. 



Mr. D. L. Van Dine was the first Entomologist of the Sugar Pro- 

 ducers Experiment Station, holding that position from 1910 to 1913 

 when he resigned and Mr. T. H. Jones, his assistant took charge. 

 Mr. W. V. Tower was appointed Entomologist for the Board of 

 Commissioners of Agriculture at the time of its creation in 191 1. 

 He retained tjiis position until 1914 when the two stations were com- 

 bined. He was then made Director of the Insular Experiment Sta- 

 tion, and Mr. T. H. Jones became chief Entomologist. With this 

 Station Messrs. C. E. Hood, S. S. Crossman, G. N. Wolcott, E. G. 

 Smyth, G. B. Merrill, R. T. Cotton, J. D. Moore, F. Sein, Jr., and 

 H. L. Dozier have also been connected. Doctor Wolcott has been 

 connected with the entomological work of the Station longer than any 

 other worker. Appointed as a traveling entomologist in 191 2 to aid 

 in the work of introducing parasites of sugar cane insects, he was 

 promoted to the position of Chief Entomologist in 1914. He resigned 

 in 1916 but returned in 1921 and resumed charge of the work until 

 1924. Dr. M. D. Leonard is now Chief Entomologist. 



