132 



PHILIPPINE RESINS, GUMS, AND OILS 

 Table 19. — Analyses of lumhang oil cake. 



Constituents. 



Oil 



Moisture 



Ash 



Protein .. 



Fiber 



P2O5 



K2O 



Mg & Ca_ 



Sample. 



4.39 

 1.9£ 



3.68 

 1.53 

 7.19 



•' Lewkowitsch, Journal of the Society of Chemical Industry, Volume 20 <1901), page 909. 

 •' Semler, H., Die Tropische Agrikultur, Volume 2, page 515. 



Although the oil cake apparently has a high food value it can- 

 not, according to Wilcox and Thompson, be used as cattle food 

 because it has a poisonous effect upon stock. It is a matter of 

 common knowledge that the kernels, either fresh or old, are 

 strongly purgative. The cake left after the oil has been ex- 

 tracted from the kernel is used as a fertilizer, chiefly by the 

 Chinese betel-pepper grov^ers. 



Lumbang has been very successfully grown by the Division 

 of Investigation, Bureau of Forestry, at Los Baiios. The planting 

 of this species was begun by Forester H. M. Curran. Table 20 

 gives average rates of growth of large numbers of these trees. 

 For the last few years the trees in the plantations have been 

 rather crowded, and the best trees have made considerably faster 

 rates of growth than the average indicated in the table. The 

 smaller trees should be removed so as to leave more space for 

 the larger ones. The trees which will be left permanently in 

 the plantation have, therefore, shown a faster rate of grovd;h 

 than that given in the table. 



Table 20. — Groivth of Aleurites moluccana (lumbang) in plantations at 



Los Baiios, Laguna. 



