Chap. III.] sub-himalayan series — subathu group. 77 



on the Solun watershed no trace of this kind of disturbance. Without 

 going beyond the negative evidence, as here pointed out, it seems to me 

 there is no alternative but to suppose that, prior to the deposition of the 

 nummulitic beds, the escarpments of the Krol and the Boj stood face to 

 face pretty much as they do now, though at a much greater distance 

 from each other, and that the deposition of the newer strata took place 

 between them, upon a bottom of Infra-Krol rocks'. The adoption of 

 this supposition at once meets all the exigencies of the case. 



There are scores of sections to be seen in the numerous little ravines 

 obscurely supported by crossing the boundaries of the long, narrow, outly- 

 specia sec ions , an -^ foa^ds of nummulitic rocks, but their character 



is wonderfully uniform. As an example of their type, I will detail the 

 section of the main band near its termination in the Blini valley, at the 

 confluence of the head waters, where the stream commences its longitudi- 

 nal course. In following downwards the stream from the Boj, the 

 carbonaceous slates, and thin grits of the Infra-Krol group, show increas- 

 ing intensity of compression, maintaining however a steady north- 

 westerly strike. Close to the junction with the nummulitic rocks the 

 Blini limestone appears among these grits and slates : as is usual in 

 such cases, and as might be anticipated, where a hard band is associated 

 with more pliant beds, the two are greatly jumbled together. Within 

 six feet of these contorted rocks, in the bed of the main river course, the 

 red and gray marly nummulitic clays are vertical, and with the same 

 direction of strike. The slate rocks come in again almost immediately 

 on the northern bank, the distance from one junction to the other 

 being about 100 feet, — the entire thickness of the nummulitic band 

 at this place. At the contact on this side both rocks have a slight 

 north-easterly underlie, being conformable, as far as can be seen in 

 a low section, and thus, to this small extent, the older rock overlies the 

 younger. The Blini limestone appears within about twenty feet of 

 the junction ; its bedding is not so broken up as on the other side 



