elxxxiv Journal of the Asiatic Society of Bengal. [NS., XIV, 
is obtained from various horizons in the miocene wherever 
suitable reservoir rocks rest in contact with the eocene shales 
or are sufficiently near them for migration to have been possible. 
he occurrence of oil at several different horizons which 
are barren except when within reach of a common cote 
is strong evidence that migration has taken place ; in the Punjab, 
for example, oil occurs in the basal Murree rocks at Chharat, 
the oil at Khaur is in Upper Murree rocks, and the Salt _ 
seepages are in the basal conglomerates of the Lower Siw: : 
system, and it is only when these rocks are near to orm contac 
with the limestones that they contain any trace of oil 
eleven miles to the southwest. The Burma Oil Com 
hand. All that is claimed for it is, that, subject to 
tions cited above, it affords a working explanation 0 
of oil occurrence in the Punjab so far as they are 
present. 
known at 
Notes on structure and stratigraphy in the Nort NG 
Punjab.—By E. 8. Prvrorp. apo 
_ After a brief descripton of previous work in the Aton gene 
pindi districts and adjoining regions the author descr ee limestone 
hills and the modified “‘ block structure ” of the Salt Range. the sup" 
is of special interest on account of its marked resemblance : sub- 
posed section of the ‘‘ Gangetic Trough,” are 
_ _The stratigraphy is described in detail; the Subathu pe nist 
divided and a correlation is suggested with the Hazara 4? 
successions. 
Note on the Aquamarine mines of Daso on weaissanl 
river, Shigar valley, Baltistan. —By C.S. Mip 
Jott ParsHap. and section 
The authors describe, with photographs, plan, view « area, th? 
the general, physical and geological conditions | form and colouty 
history of the discovery of the gems, their size, cryst® S actual rests 
‘ ape trix. and wd 10 dey 
in paying gem-material of a practical mining test made 
operations. The investigations showed the amount of the 44 
