TRAPPEAN SERIES. 25 



traced, precisely similar to that at the base of the little outlying trap 

 hill at Bokhara. In the next hill to the west this bed is 15 feet below 

 the top of the hiU^ and 60 feet above the base of the trap, the lowest 

 flow of which is here distinctly nodular, and only slightly amygdaloidal. 

 The intertrappean band is seen as far as north of Pitaisur, but near 

 Mahurjhari, and to the west of it, it appears to have died out. 



The localities near Takli close to Nagpdr from which Mr. Hislop 

 obtaiaed so large a number of fossils are the next 



Takli. 



to the south;* one of these is just west of the 

 artillery barracks : the bed is a greenish grey clay, or hardened mud, 

 breaking into small polygonal fragments, and occasionally containing 

 rounded pieces of a rock precisely similar to itself, probably decomposed 

 trap. The whole bed appears to consist of trap detritus ; it can only be 

 traced a few yards in any direction, and Mr. Hislop's idea,t that it is 

 a portion of a bed caught up in a lava flow, may very possibly be correct. 



The other locality is farther west, south of the Rassala lines. The 

 bed here is a fine muddy clay, and has also the appearance of being formed 

 of trappean debris. It contains fossil shells in abundauce. It cannot be 

 traced to any distance, but this may be due to its position in a small 

 ravine, as it is a well marked bed. 



There is nothing to be added to Mr. Hislop's description of the 

 freshwater bed on Sitabaldi hiU.J It is another inconspicuous band. In 

 the quarry at the base of the hiU, there is an appearance of more than 

 one flow of trap being included in the thick bed which forms the mass of 



* I doufct if I could have found either of these but for their being shown to me by 

 Mr. Hislop's old servant Vir^pS. Both exposures are extremely small, and the rock so 

 much like decomposed trap that it is most difficult to recognise it ; probably many similar 

 obscure beds of very small extent occur in this neighbourhood. 



t Quar. Jour., Geol. Soc, Lond., Vol, XVI, p. 158. Of course I do not admit that the 

 whole intertrappean formation has been similarly transposed, as was maintained by 

 Mr. Hislop. See Mem. Geol. Surv., Vol. VI, pp. 153—155. 



J Quar, Jour., Geol. Soc, Lend., Vol XI, p. 349. 



d ( 319 ) 



