4 MALLET, VINDHYAN SERIES. 



of the Gryphite shell, which is peculiar to this formation/^ At Patteriya 

 the limestone " comes in contact with the trap rocks, and is thereby 

 changed both in appearance and nature/' From Patteriya to Sagar and 

 thence southwards to Tendukaira trappean rocks were passed over, the li- 

 thological characters of which are described, and those of the earthy lime- 

 stone, which in some places was found underneath and associated with the 

 traps, and which Captain Franldin hints may possibly represent the 

 oolitic formation of England. The remainder of the paper refers to a tract 

 of country not included in this report, but before passing on, it may be 

 well to point out how the survey operations have modified the above 

 views. Although the absence of fossils has hitherto prevented an ac- 

 curate correlation of the Vindhyans with any one of the European forma- 

 tions, enough is now known to assert with confidence that they are 

 much older than the new-red-sandstone, and the idea of their being 

 saliferous, which was one of Captain Franklin's strongest reasons for the 

 above opinion, has also proved erroneous, as regards at least all the area 

 included in his map and yet examined by the survey. The limestone 

 also, which he regarded as lias and distinct from the Vindhyans, has 

 been shown to form a sub-division of these rocks with which it is inter- 

 stratified. With regard to details, such as the supposed alteration of the 

 (Bundair) limestone at Patteriya and identification of the Kuttra shales 

 with those at Sohawel, it is unnecessary to speak. No geologist simply 

 traversing a perfectly new country could well avoid falling into some 

 such errors, and Captain Franklin's paper added much to the scanty know- 

 ledge previously possessed respecting the geology of that part of India. 

 Mr. Hardie* has described the sandstones and shales of Neemuch, in 



which no fossils were found, except one specimen, 

 1829, Mr. Hardie. . . ' . 



which appeared to be the impression of a portion of a 



cryptogamous plant. He agreed with Captain Dangerfield that these rocks 



* Asiatic Researches, Vol. XVIII, Part II, p. 27. 

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