On the Sub-Himalaycin roclcs. 
23 
18G1.] 
shews but a very had development of the Siwalik rooks, and he could 
nowhere “ find or hear of any fossil remains among them.” He 
assumes them, however, to he the representatives of the rocks near 
Dehra. He then proceeds to notice a series of sandstones, with 
occasional small seams of lignite, and imperfect vegetable impres- 
sions, and with beds of marl, and occasionally salt-springs, which 
form the northern boundaries of the longitudinal valleys, or Duns, 
the connection of which with the outer Siwaliks he could not trace, 
hut conjectured that there must he great faults. Suggestions were 
thrown out, that these might be of the European Saliferous age, or 
possibly the extension of the strata containing rock snlt which are 
found further to the west in the Salt range and in the hill district of 
Mundee. It was also suggested, as possible, that they might have 
some connexion with the fossiliferous beds near Subathoo. In 1853, 
a brief notice of the rocks about Subathoo, by Major Vicary appeared, 
(Quar. Journ. Geol. Soe. London, Yol. IX. p. 70.) In this paper, 
the author noticed the true Siwalik rocks, south of the Pinjore-dun, 
and also, a sandstone not unlike that of the Siwaliks, in the north 
of the dun, in which he had sought for fossils in vain. The connec- 
tion of this with the outer Siwaliks is concealed. North of this 
we meet with confused strata of variegated shales, also unfossiliferous. 
On the ridge of Kussowlie, and beyond it to Subathoo, the fossilifer- 
ous rocks of the Nummulitic period shew, associated with variegated 
rocks, &c. These are made subjacent to the fossiliferous strata. All- 
these groups, Major Vicary separates from the Simla series, by a 
great fault. Regarding the age of these older and inner rocks,, 
neither Major Vicary nor Capt. Strachev offer any conjecture. 
In M. D’Archiac’s valuable treatise on the Nummulitic fossils of 
India, Major Vicary’s section is copied and he is quoted as the 
authority for other statements. In these, there is an important dis- 
crepancy or error, which must be noticed. M. D’Archiac speaks, in 
the most unequivocal manner, (pp. 175-6) of mammaliferous strata, 
representatives of the Siwalik formation, about Subathoo — and there 
overlying the Nummulitic rocks. Inasmuch as Mr. Medlicott’s own. 
researches had pointed out that the strict limitation of those fossils* 
to the “ Siwalik hills” is one of the most interesting facts in the geo- 
logy of the district, he devoted repeated examination and enquiry on 
