I 



INSULAR EXPERIMENT STATIONS. 27 



(letriniental to pineapple growing, and a survey of soils is recom- 

 mended before planting to this crop. Xew problems have been taken 

 up during the past year, the most important of -which are the best 

 treatment of the red clay soils of the island and a cooperative study 

 of chlorosis in sugar cane. 



The worli in animal husbandry has been considerably broadened, 

 and it now includes horse breeding to improve the size and conforma- 

 tion of the horse, breeding for work oxen, breeding of dairy cattle, 

 as well as the introduction and breeding of hogs, sheep^ and poultry. 

 The surplus stock is sold to planters, and the demand is always in 

 excess of the supply. The investigations on the mineral nutrition of 

 pigs, begun last year, have been concluded, and the results indicate 

 that calcium chlorid can profitably be used with rations deficient in 

 lime. The work with poultry is very gratifying. xV large number 

 of fowls and settings of eggs were disposed of during the year, and 

 pure-bred poultry or crosses of the introduced breeds are to be found 

 in nearly every community. Some work in dairying has been begun, 

 the object of which is the more sanitary handling of milk. 



Some preliminary investigations in the production of forage crops 

 have been begun, and a variety of sorghum introduced from Barbados 

 has given heavy yields on dry, hilly lands. The work in making and 

 feeding silage has been continued, and it appears that the produc- 

 tion of good silage offers fewer obstacles than in a temperate climate. 



During th.e past year an association of the sugar planters of the 

 'island established an experiment station, placing a tonnage tax on 

 their product for its maintenance. This station will study the peculiar 

 problems relative to the production and manufacture of sugar, and 

 the Federal station will be relieved of much work it had been im- 

 pelled to carry on with this crop. Some cane breeding and a few 

 cooperative experiments that were begun some years ago will be 

 concluded, but otherwise investigations on this crop will be dis- 

 continued. 



The efforts of the station to secure diversification are meeting with 

 success, and intensive farming is assuming its proper place in the 

 agriculture of Porto Eico. 



GUAM STATION. 



Much work has been done at the Guam station in the construction 

 of new buildings, building roads, clearing and draining lands, etc. 

 The new office building was completed and occupied in the fall of 

 1910, and the use of the rented quarters was discontinued. X store- 

 house in which to keep the farm implements was completed during 

 the year, as was a stock barn 30 by 40 feet in extent,. This gives 

 ample space for 12 head of stock, with the necessary feed and storage 

 room for a large amount of hay or other forage. The road system 



