HAWAII. 97 



roots and root hairs of the plants, interfering with their absorptive 

 powers. 



The entomological work consisted principally of a study of cotton 

 insects, together with methods for their control. Cooperative ex- 

 periments are being carried on in the introduction of parasites of the 

 algaroba bean weevil, plant lice, etc. 



A number of miscellaneous investigations were carried on during 

 the year, and as a result of cooperative experiments a method of 

 grinding the algaroba bean was devised by which a large proportion 

 of the feeding value of the beans is saved. The rubber investigations 

 received considerable attention, and tapping experiments with 500 

 trees were conducted to determine the commercial aspects of this 

 industry. 



The publications of the Hawaii Station during the past year were 

 the Annual Report for 1908; Bulletin 18, Insects of Cotton in 

 Hawaii; and Press Bulletins 21, Fruit Marketing Investigations 

 in 1907; 22, Pineapple Shipping Experiments in 1908; 23, Tlie 

 Influence of Manganese on the Growth of Pineapples; and 24, A 

 Preliminary Report on Cotton Experiments. 



The revenues of the station for the fiscal year ended June 30, 1909, 

 were as follows : 



United States appropriation $26,000.00 



Farm products 605. S9 



Total 26,005.80 



The work of the Hawaii Station in diversifying agriculture and 

 developing new industries is being steadily pushed, and the results 

 obtained show evidence of the development of some important indus- 

 tries in the near future. 



Hawaiian Sugar Planters' Experiment Station, Honolulu. 



C. F. EcKART, M. S., Director of Division of Agriculture and Chemistry. 



The work of the division of agriculture and chemistry, as in pre- 

 vious years, was largely devoted to the propagation and selection of 

 varieties of seedling canes. Of over 300 of these new varieties tested 

 on a small scale, those designated as Hawaii Nos. 20, 24, 70. 224, 

 227, 270, and 309 proved of conspicuous merit. At the station a 

 number of inferior varieties were weeded out, thus reducing the 

 number of promising sorts to 136 out of 5,000 originally obtained. 

 During the year experiments dealing with fertilizers and with the 

 eti'ect of " stripping " on canes were conducted on plantations co- 

 operating with the station. Eighty-three seedling canes of known 

 parentage, grown to maturity, showed no evidence of merit and all 

 were destroyed. 



40045°— 10 7 



