RECORDS 
OF THE 
GEOLOGICAL SURVEY OF INDIA. 
Part 2.] 1878. [May. 
On the Geology op Sind, (second Notice,) hy W. T. Blanfoed, A. R. S.M., 
F.R. S., Geological Survey of Lidia. 
Introduction .—A brief account of the Geology of Sind, so far as the structure 
of the country had been ascertained by one short season’s work, was given in the 
Records of the Geological Survey for 1876.‘ Two whole seasons, 1875-76 and 
1876-77, have since been devoted by Mr. Fedden, and one season and part of a 
second by myself to the geological examination of the province, and, as might 
have been expected, several additions of more or less importance have been made 
to our previous knowledge, whilst in a few cases it has been found that our first 
conclusions were incorrect. As before, Mr. Fedden’s notes are combined with my 
own, and I am indebted to my colleague for a large proportion of the observations 
made. Mr. Fedden has also added much to our knowledge of the fossil fauna 
by his collection and examination of the fossils, but the details must be deferred 
for the present. 
The sub-division of the tertiary series in Sind into Manchhar, Gaj, Nari, 
Khirthar and Ranikot groups holds good, although the boundaries between the 
various sub-divisions have proved, in parts of the province, to be less distinct 
than in the Khirthar range, and there is the same remarkable appearance, that 
all the different tertiary formations are only of local value, and that all tend to 
pass into each other at a comparatively short distance from each typical section, 
which has been already noticed by Mr. Medlicott in the corresponding for¬ 
mations of the Punjab.® Some slight modification in the geological horizon 
1 Vol. IX, pp. 8-22. 
2 Eec. G. S. I., IX, pp, 50, etc. 
A 
