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192 PROCEEDINGS OF THE GEOLOGICAL SOCIETY,
The upcast of the palaeozoic formations in the lowest or southern-
most of these ridges constitutes the chief interest of this communi-
catiouj and leads us to hope how, with an extension of surveys, other
palaeozoic zones may be found besides those in the higher ranges in
which Capt. Strachey has already developed true Silurian rocks*.
In the meantime, we find, through the labours of independent ob-
servers, that, however dismembered and separated, Silurian, Devonian,
and Carboniferous rocks of Europe and America exhibit their repre-
sentatives in the Himalaya Mountains, and thence extending into
Hindostan.
Another great geological feature is brought out by these researches,
in the evidence that the palaeozoic rocks of the Salt Range have been
upheaved posterior to the well-known tertiary bone-beds of Northern
India. Hence there is every reason to believe that in the East as well
as in Europe, some of the mightiest dislocations, like those of the
Alps, Apennines, and Pyrenees, have taken place after the formation
of deposits charged with the spoils of the largest quadrupeds.
.R. I. M..
The Salt Range, in the Northern Punjaub, consists of a series
of stratified rocks, having a general E. and W. strike, and dipping to
the North at angles varying from 35° to 50°. The direction, how-
ever, of the dip, as must be the case in all mountain chains, is
irregular. Although the strata forming the Range present such a
high general inclination, yet no intrusive rock has yet been met
with by the author of this commimication, who has been engaged
under Government for some years in carrying on researches, chiefly
on the south side of the Range, with a view to develope the mineral
resources of the Punjaub.
The subjoined diagram. Fig. 2, exhibits the general structure ot
the Salt Range f.
Fig. 2. — Diagram showing the general section N. ^' S. across the
Salt Rarcge, Northern Punjaub.
The figures in tlie diagram have reference to the following list of the strata
composing the range.

• See Quart. Journ. Geol. Soc. vol. vii. p. 292, &c.
  

t For Reports (geological, mineralogical, &c.) on the Salt Range, by Dr, A.
Fleming, see Calcutta Journal of the Asiatic Society of Bengal, 1848-49, vol. xvii.