184 



FOREST PRODUCTS 



The following table l shows the high and low prices, per gallon, at 

 Savannah for turpentine for eleven years. 



PRICES OF TURPENTINE PER GALLON 



Rosin. 



The greatest single utility of rosin is in the manufacture of soap. 

 It is combined with caustic soda and potash to form the various kinds of 

 soap. It is also in great demand as a rosin sizing in the manufacture of 

 paper. It gives certain kinds of paper a stiff coating or surface, making 

 them adaptable for printing and writing purposes. Without this sizing 

 it would be impossible for certain papers to take colors, inks, etc. 



" Brewer's pitch," made of rosin and a small admixture of turpentine, 

 was widely used to coat the interiors of barrels and other containers of 

 beer and malted liquors. This coating gives the liquors a better taste and 

 renders the barrels easy to clean. 



Rosin is also in great demand for a wide variety of manufacturing 

 enterprises, particularly in the making of linoleum, sealing wax, oilcloth, 

 special flooring compounds and coverings, various kinds of inks, roofing 

 materials, lubricating compounds, and a great variety of chemicals too 

 numerous to mention. 



An important use for rosin is for resin driers, which are extensively 

 used in the drying of oil paints and varnishes. Rosin soaps are com- 

 bined with metallic salts to form metallic resinates, which are known 

 in the trade as " Japan driers." 



Rosin is distilled into rosin oils which are produced under several dif- 

 ferent trade names. These oils are used in the manufacture of several 

 greases and specialty lubricants, as well as solvents. 



1 From the Naval Stores Review, Savannah, Ga., June 7, 1919, p. 10. 



