1865.] Notes on the Sandstone formation, ke. 107 
The specimens had just the resemblance of drift wood imbedded in the 
sandstone. The dip was at a very high angle to the north, so that the 
beds were passed in succession going up the ravine, and had there been 
any thick seams, they must have been seen. Three hundred yards up 
the bed of the nulla, the softer sandstone was succeeded by one much 
harder, of a light colour and coarse texture. The lignite was found in 
' this also, and the longest and thickest string yet seen was at this point. 
Yet, from the appearances of it and from so little lying in the water- 
courses, I did not think anything approaching to a seam was likely to 
be found; and, not having time to spare, I did not follow the ravine 
any higher. An inspection of th ines to the east or west might 
bring to light larger masses of this lignite. The dip at this furthest 
point was N. H. by N. 70°. Inthe cliffs on the west, a very good section 
was obtained, and the highest beds, that appear upon the surface to be 
an unstratified talus, I now saw were horizontally bedded and resting 
quite unconformably on the sandstones below. These horizontal beds, 
of which about 150 feet was exposed, are composed of sandy clay and 
semi-angular gravel, with scattered large, partly water-worn masses of 
rock, some of large size. I append a section (Plate IV.) to illustrate the 
Buxa formations, which, I trust, will make my description plainer. I did 
not succeed in finding any fossils :—a longer search would perhaps have- 
ended successfully,—so that it is impossible to say in what formation 
this isolated mass of sandstone will find a place.* The plateau of the 
Buxa position is probably the highest level of the horizontally strati- 
fied gravels. I believe some specimens of the lignite have already 
‘been forwarded to the Superintendent of the Geological Survey. 
Some specimens in which the woody texture is well displayed shall 
be sent by first opportunity. 
* See a remark on this head in the Proc. As. Soc. for May, 1865, p. 91. 

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