CORKELATION WITH SIMLA SERIES. ioj 
With regard to the upper beds of the Simla series, viz., the 
Boileauganj quartzite and the Jutogh limestone, there are so many 
similar combinations in Spiti — e.g., lower silurian quartzite and silurian 
limestone, Muth quartzite and (?) devonian limestone, carboniferous 
quartzite of the Lipak river and carboniferous limestone — that any 
attempt at correlation is impossible. 
Another suggested correlation, which, if subsequently found to be 
correct, would to some extent favour Stoliczka's original view, has been 
quite recently put forward by General McMahon, whose extensive ac- 
quaintance with the Blaini and in/ra-B\^\n\ beds of the Himalayas en- 
titles his opinion to no small weight. The correlation in question is that 
of a certain conglomerate, found by Major McMahon in Chitral, with 
the Blaini boulder-slate ; a full description of the rock will be found in 
a recent number of the Geological Magazine ^ : unfortunately, General 
McMahon's observations were made only on hand specimens, which 
are so frequently misleading. 
The conglomerate is said to occur below a bed of red sandstone 
which is in turn overlain by limestone containing devonian fossils.^ It 
has already been stated,^ that the sequence as recorded above distinctly 
recalls the conglomerate, red quartzite and limt stone, i.e., the silurian 
system, of Spiti, but in the absence of any details as to the thickness 
or subdivisions of the members of the Chitral beds, it is impossible 
to say how far the one series may represent the other, but even should 
the Chitral series and silurian of Spiti eventually be proved, on palaeonto- 
logical grounds, to be one and the same, the probability of being able to 
connect two such widely separated areas as Chitral and Simla seems 
very remote. 
It is, however, interesting to note that in Hazara a somewhat similar 
series was found by Mr. Middlemiss who described * in sonie detail an 
"?«/ra-trias " conglomerate which he has correlated with the Talchir . 
1 Geol. Magazine, vol. IX, No. i, January igo2, pp. i— 8. 
Ibid., No. 2j February, ic,o2, pp. 49—58. 
^ Supra, p. 31. 
■* Memoirs, G. S. I., vol. XXVI, pp. 17—23. 
( ) 
