THE PHILIPPINE BUREAU OF SCIENCE 
RECENT PUBLICATIONS 
AN INTERPRETATION , OF RUIWPHIUS’S HERBARIUM AMBOINENSE 
By E. D. MERRILL 
Based on the collections made in Amboina by the late Charles Budd 
Robinson 
Order No. 450. Bureau of Science Publication No. 9. Paper, 595 pages 
and 2 maps. 
Price, $3 United States currency, postpaid. 
SPECIES BLANCOANAE: A CRITICAL REVISION OF THE PHILIPPINE SPECIES 
OF PLANTS DESCRIBED BY BLANCO AND BY LLANOS 
By E. D. MERRILL 
Order No. 461. Bureau of Science Publication No. 12. Paper, 423 pages 
and 1 map. 
Price, $2.25 United States currency, postpaid. 
PHILIPPINE WATER SUPPLIES 
By George W. Heise and A. S. Behrman 
Order No. 46 o. Bureau of Science Publication No. 11. Paper, 218 pages, 
19 plates, and 4 text figures. 
Price, $1.75 United States currency, postpaid. 
VEGETATION OF PHILIPPINE MOUNTAINS 
The relation between the environment and physical types 
at different altitudes 
By WILLIAM H. BROWN 
Order No. 473. Bureau of Science Publication No, 13. Paper, 434 pages, 
41 plates, 30 text figures. 
Price, $2.50 United States currency, postpaid. 
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