BOTANY OF BIHAR , 



CENTRAL TRACT. 



21. Knurtur HUU—The north of t! 

 lying alluvial plain and one of the principal wl 



' tin/ Northern tract : the southern ; 



Hills. They are one of the r. . 

 Vindhyan range, separated from the main mass 

 the river Sone, on which they abut wit h 



extend cest ,\ rds ,,.- 

 become fused with the main range. They beloi 

 '.and consist of sandstones, shales >< 

 a is. and are assigned to the Vindhya 



ow almost destroyed. The K 

 '" snt forest, and Si 

 ft. high as existi 

 f placed under for 



J. D. Hooker i 

 120 ft. high a 



are not well km. HamiltoJ I 



have only examined their eastern extremity. 



23. Gaya Hill* <i„<! M<>,<,,hi,r //,//,- The hills on the southern 

 border of the Gaya district are merely the northern scarps and outliers 

 of the Palamau and Hazaribagh plateaux. In Monghyr, and again 



" 24° The Gida'm hern boundary of 



Gaya and Monghyr, are composed of Dharwars,* including micaceous 

 and ferruginous schists so ■ ntrusive coarse 



pegmatitic granites that thev vield workable mica. The rocks of the 

 Kharagpur Hills are not nearly so much altered, the shales heine 



elevation. A description of the flora of these hills was ^iven bv 

 Buchanan-Hamilton. They are still more or less covered with scrub 

 jungle, but at one time bore good Sal forest. 



25. Rajmahal Hills : Gondwana Rocks.— The Rajmahal Hills are 



Santal Parganas district, 



.'' '.'. " ' ~ 





