REPORT OF THE SECRETARY. 147 



importance of windbreaks in connection with citrus growing in Porto 

 Rico has been fully demonstrated. Studies are being made of the 

 pests of other economic plants, especial attention being given to those 

 occurring on coffee. The experiments on the introduction and cul- 

 tivation of some of the more valuable coffees of other regions have 

 been continued, and the station is distributing for planting limited 

 quantities of five of the highest-priced coffees of the world. Of some 

 of these, three-year-old trees bore this year more than a pound of 

 clean coffee to the tree. The flavor and aroma, so far as tested, have 

 been pronounced equal to the original stock. The work of the station 

 on the importation and breeding of live stock has been very success- 

 ful and some results are being shown. The progeny of American 

 saddle-bred horses bred to native mares have matured into handsome 

 animals that command very high prices. Crossbred zebu bulls and 

 woolless sheep have been introduced and have developed splendidly. 

 They will be used to improve the cattle and sheep stock of the island. 

 Similar work is being carried on with swine and poultry, and the 

 station's excess stock of all kinds is in great demand by planters and 

 breeders. The cooperative work with planters and with the insular 

 authorities has been extended, and the relation of the station's work 

 to the island's development is becoming well recognized and 

 appreciated. 



The agricultural experiment station of Guam now has a permanent 

 location, the negotiations for its purchase having been completed 

 during the year. Much progress has been made in bringing the land 

 under cultivation and in the erection of necessary buildings. The 

 greater portion of the land has been planted to forage crops of various 

 kinds preUminary to experiments in the introduction and breeding of 

 live stock. The experimental work undertaken has been of the 

 simplest kind, and ocular demonstrations are being made of the value 

 of improved varieties of standard crops, the introduction of others, 

 and the necessity for better methods of cultivation of all crops. Some 

 of the introductions have proved of great value and readily adapted 

 to their new location. Among those with which the most striking 

 results have been obtained are Kafir corn, sweet potatoes, avocados, 

 and pineapples from Hawaii, guinea grass, and the large water grass, 

 Paspalum dilatatum. All of these thrive well and have proved 

 very satisfactory, and they are being distributed for planting as 

 rapidly as possible. A number of crops have been found to ratoon 

 or sucker after the plants are cut, and advantage is taken of this to 

 grow some of them as perennials, although they are usually grown 

 as annuals. Various leguminous plants have been introduced; 

 among them cowpeas, velvet beans, soy beans, and peanuts seem 

 quite promising. A demonstration of the value of these crops in 

 enriching the soil is in progress. Attention is being given to the cul- 



