708 



WHITFOHI). 



On the above mentioned plot there were counted in all 3,458 trees; of 

 these 2,110 belong to the enumerated dipterocarps (Hopta acuminata and 

 Vatica mangachapoi not being included) and the remainder 1,348 dis- 

 tributed among the remaining of which the list given above is fairly 

 representative. An examination of this list shows that there are included 

 89 families and over 60 species. 



The following table gives the volume on tbe Limay tract: 



Tabu V. — Volume on :><) (//.'>. ',.'*) hectare* on the Lima* [Bataan) tract -all 

 tree*- ',o oentimetere ami over included. 







Cubic 





Scientific oame, 



Common name. 



meters 



per 



hectare. 



Per 



cent. 



Diptibooabfacbae: 









Dipteroearptu gnmdifUmu Hlanco 





\ SI. (i 

 28 



28.6 



2!!. s 

 9 8 



Diptencarvui ptrniet/twu Blanco 



1'iiniio 



Ptntoeme eontorta Men. A Rolfe 





AnhopVva thuvifcm BlaDCO 



Palosapis . 



Shorn pofytptrnta Mcrr. 



Tangolle 



it; 



5.6 



Stored </nis<> Klimn' 





«.] 



i.:. 



Total Dipteroearpaoeoi 







08. 8 

 SI. 2 



All others 





80. o 



Total 





386. 2 



LOO.O 







Tables 1\' and \' show (bat 80.9 per cent of tbe stand and 68.8 per 

 cent of I lie volume respectively on tbe above 1 met are composed of six 



species of Dipterocarpaceae, and that three species, viz. Dipteroearptu 

 gromdiflorua, ZHpterocarpus vernicifluus and Pentacme eontorta form 45.9 



per cent of tbe stand ami 51.9 per cent of tbe volume. 



FORESTS ON A DELTA PLAIN IX MINDOBO. 



In cooperation with M. L. Merritt, a tract of land on tbe east coast 

 of Mindom comprising some 55 square miles AV; i S examined. This is 

 a delta formation, slightly raised, forming a number of dilferent physio- 

 graphic units. Corresponding to these arc distinct vegetative types. 

 In this connection it is not important to distinguish between these. 

 After some intensive study to learn to distinguish the numerous kinds of 

 trees found on the tract, valuation surveys were run bv what is known 



