PORTO RICO. 177 



as time permitted, studies were made of the diseases of other fruits, 

 sugar cane, and coffee. These investigations were carried on with 

 the idea of determining the cause of the disease and methods of 

 control. 



In entomology special studies are being conducted on the insects 

 injurious to citrus fruits, and the efficiency of sprays is being tested 

 for their control. It has been found necessary to make certain modi- 

 fications in the formulas recommended for insecticides and the 

 methods of their apjilication. An effort is being made to interest 

 the people of Porto Kico in apiculture, and a number of hives have 

 been sold to planters in different sections of the island. It is believed 

 that this industry will be of considerable importance, as it will not 

 only directly yield an added income, but will assist materially in the 

 pollination of coffee during its short blooming periods. 



The coffee work of the station has been continued at the substation 

 at Carmelita, and arrangements have been made for experiments on 

 a considerable scale in the renovation of an old coffee plantation. 

 In addition to the experiments on the cost of renovating an old 

 plantation and of establishing a new plantation, considerable work is 

 being carried on in the introduction of coffees from different parts 

 of the world, and during the past year a number of the highly 

 prized Java and Mocha coffees fruited in considerable abundance. 

 Practically all the seed of these varieties has been saved for planting, 

 and the trees will be distributed from the nursery as rapidly as they 

 can be grown. Tests of the new coffees have shown that they retain 

 their characteristic flavors when grown under Porto Rican conditions. 



The live-stock equipment of the station has been increased by the 

 purchase of a number of cattle, some African woolless sheep, fowls, 

 and other animals. The demand for these animals and their prod- 

 ucts is far beyond the station's ability to supply. 



A silo was constructed at the station for the purpose of testing the 

 advisability of storing certain crops, such as Para grass and cane 

 tops, which are abundant at certain seasons. It was found that these 

 make good silage for use when the supply of forage is low. 



The publications of the station for 1909 consisted of the Annual 

 Report; Bulletin 8, Pineapple growing in Porto Rico; and Circulars 

 8, Picking and packing citrus fruits; 9, The catalase of soils; and 10, 

 Some principles in manuring with lime and magnesia. 



The income of the station during the past fiscal year was as 

 follows : 



United States appropriation $20,000.00 



Farm products 4, COS. 37 



Insular appropriation for office and laboratory building 20. 000. 00 



Total 50, COS. 37 



46045°— 10 12 



