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. 

 and xviii. 



