NAVAL STORES 



183 



One barrel of average crude turpentine will yield about 5 gal. of 

 spirits of turpentine and from 60 to 65 per cent of its bulk in rosin. 



The bleeding of the first year produces a fine, light-colored rosin and 

 this grows darker from year to year until at the end of the fourth year 

 the scrape at the end of the season yields the poorest grade of rosin. 



The following tables show a comparison of yields of turpentine and 

 rosin from bleeding by both the cup and box system: ^ 



SPIRITS OF TURPENTINE FROM HALF CROPS, SEASONS 1902-1904, GEORGIA 



NET SALES OF ROSIN FROM HALF CROPS, SEASONS 1902-1904, GEORGIA 



UTILIZATION OF PRODUCTS 



Turpentine. 



Probably the greatest^quantity of turpentine is used for paints and 

 varnishes. It has the power of thinning out these materials by its action 

 as a solvent, as well as by its power of oxidation and evaporation. 



It is widely used in the cloth-printing industry, especially for woolens 

 and cottons and it is extensively in demand as a solvent for rubber, gutta 

 percha and like substances. 



Turpentine is also used in a great variety of chemicals, medicines and, 

 in a number of industries, for many specialized purposes. 



1 From The Naval Stores Industry by Schorger and Belts, U. S. Department of Agriculture, 

 Bulletin No. 229, page 23. 



