12 CRETACEOUS ROCKS OF S. INDIA. [PaRT I. 



India, not only established the true position of the sandstones of 

 Trivicary and the " Red Hills," but also discovered beds of similar 

 lithologic character at Verdachellum, and at various points in Nellore, 

 and in the neighborhood of Madras, all of which he identified with the 

 sandstones of Trivicary. At Verdachellum he found fossil wood similar to 

 that at Trivicary, and noticing the position of the sandstones, as over- 

 lying the fossiliferous limestone, he expresses his belief that they were 

 once continuous with the beds of Trivicary. 



Mr. Adolphe Schlagintweit,* on the other hand, probably unacquainted 



,, . , , , c. , , • X with Captain Newbold's writings on the subiect, 

 Mr.Adolplie Schlaguit- ^ o j ' 



wcit, 1857. describes the Trivicary beds as underlying the 



Cretaceous rocks of Pondicherry, and further identifies them with the 



great sandstone formation of Central India, which he refers to the 



Oolitic series. A short paper, in refutation of this view, was 



contributed by myself to the Madras Journal in the early part 



of 1859.t 



Equally erroneous is the view promulgated by Dr. Carter in his 



Geological Summary before noticed. Dr. Carter 

 Dr. Carter, 1854, , _ . . 



classes the Trivicary beds "ndth the ossiferous 



conglomerates of Perim Island, the Nerbudda, &c., as Miocene ; while 



he regards the sandstones of the Red Hills as Pliocene. Dr. Carter 



had never visited the spot, or he could scarcely have fallen into 



the error of considering the sandstones of the two locaUties as distinct 



formations. 



Of the other rocks, which I shall have occasion to refer to in the 



following pages, the sub-recent coast deposits have been noticed by Mr. 



Kaye and Captain Newbold in the papers above quoted. The gneiss 



rocks, with their associated granite veins, have also been described 



by various observers. 



* Journal Asiatic Society, Bengal — Vol. XXYI., page 109. 



f Madras Journal, Literatiu-e and Science, New Series — Yol. TV., page 47. 



