Philippine Resins, Gums, Seed 
Oils, and Essential Oils 
By Augustus P. West, Ph. D., 
Professor of Chemistry, University of the Philippines 
and 
William H. Brown, Ph. D., 
Chief, Division of Investigation, Bureau of Forestry; Professor of Botany, 
University of the Philippines; and Plant Physiologist, Bureau of Science 

Department of Agriculture and Natural Resources 
Bureau of Forestry 
Bulletin No. 20 
Arthur F. Fischer, Director of Forestry 
MANILA 
BUREAU OF PRINTING 
1920 
168837 
