6o2 Forestry Quarterly. 



demonstrated its usefulness. Two borers are destructive in 

 Cuban waters, — limnoria and teredo ; the former seems to be the 

 more destructive except waters with a sandy bottom, 



Santo Domingo. Yarei (Chamaerops) is in general use, also 

 a little Georgia Pine. There are no special specifications. Stuff 

 about 6" diam. and 30 to 40 ft. long has been used. Native 

 material lasts 2 or 3, sometimes 6 or 7 years. Creosote injec- 

 tion has been tried. 



Haiti. No results given. Cement coating used but work was 

 recently done. It is reported that latania palm lasts 35 years 

 but these palms are scarce and exploitation is very costly. 



Martinique. A native wood, Poirier, lasts 10 to 20 years. 

 Sizes are 12 to 20 inches diam., 20 to 30 feet long. No pre- 

 servative treatment is employed. 



Trinidad. Piles formerly used were of Greenheart, Poui, a 

 native wood, is used locally somewhat. Special orders determine 

 sizes, 40 ft. by 15" is maximum size used. A four inch coating 

 of concrete makes them last 50 years or more, while if un- 

 protected 15 years would be average life. No other preservatives 

 are used. 



J'enezuekt. Vera (Giiaiaciini arborcuni) and Curarire (Tecoma 

 pentaphyUa) are used for piling. Untreated they last about 6 

 years, sometimes however Curarire lasts indefinitely (this has 

 never been studied). Most common practice of preservation 

 is to coat with tar. Sometimes the piles are charred. Neither 

 method seemed to be effective. 



It is interesting to note that the tapping of 

 Turpentine Pimis longifolia in the Himalaya ]\Ioun- 



Indnstry tains has developed quite a local market 



in for rosin and turpentine. In 1910-11 the 



India. number of trees tapped was 194,000 the 



yield of rosin 9,500 maunds''' and 21,000 

 gallons of turpentine. In 1912-13, 400,000 trees were tapped with 

 a yield of 20,000 maunds of rosin and 45,000 gallons of turpen- 

 tine. In 1916-17, the Indian Forest Service estimates that the 

 output will reach 47,000 maunds of rosin and 105,000 gallons of 

 turpentine. The report states : "With the growing Indian de- 



*i maund is equal to from 25 to 82 pounds, varying in different localities 



