342 On the Structure of the Delta of the Ganges. 



Note E. — The identity of Format io>i in the Sites of Indian Fossils. 



The Fossils I have mentioned, Mastadon Elephantoides, &c., establish 

 an identity of formation, between the upper beds of the Irawaddi de- 

 posit and the upper deposits, included between the Sewalik and the Hi- 

 malaya Range. Several of them are the same as those found by Craw- 

 ford and Wallich, and it appears that all along the foot of Himalaya, 

 from the Punjaub down to the Irawaddi, there is a nearly continuous 

 series of Tertiary Formations, more or less upheaved at different points 

 along the line, but in all their great features, they are chiefly developed 

 in the Jumna Gangetic portion, where they are elevated to upwards of 

 1500 feet above the Plains. — Dr. Falconer, Jour. As. Soc. vol. iv. 



There is in every respect a complete analogy between the fossils of 

 the- Jumna, and those fortuitously discovered by Crawford, under the 

 Banks of the Irawaddi. Their preservation is equally due to their con- 

 version into, and impregnation with, Hydrate of Iron, and the words of 

 Professor Bucldand, would probably apply as well to the one as to the 

 other. — /. Prinsep. 



It is a curious fact that the size and description of the gravel adher- 

 ing to the Fossil bones of the Jumna, exactly resemble those attached 

 to the Jubalpur Fossils. 



The Ava Fossils agree exactly with those of Central India, as regards 

 the rolled gravel forming their respective matrices, but differ in the 

 mineralising material, the first being Hydrate of Iron, the second 

 Carbonate of Lime. — J. Prinsep, Jour. As. Soc. vol. iii. 



Descriptive Catalogue of a series of specimens from the 

 Delta of the Ganges, commencing at the surface of the 

 ground, and extending to the depth of four hundred and 

 eighty-one feet. 



No. 



1 

 2 



3 

 3 

 4 

 5 



6 



7 



Names and Characters. 



S urface Soil, .... .... .... 



Adhesive Blue Clay, .... 



Ditto Ditto with Peat, 



Ditto Ditto Ditto, .... 



Adhesive Clay, .... 



Dark Clay, with decayed wood, 



largely intermixed, .... . . . . 



Ditto Ditto Ditto, 



Calcareous Clay with Nodular 



Limestone or Kankar, , . . . 



Range. 



Begins 

 at 



Ends 

 at 



Feet. 



io 



25 



Feet. 

 10 

 25} 

 35 f 



' • 



40 S 



40 



45) 



505 



50 



GO 



Remarks. 



