30 l^otices of Memoirs — Geological Survey of India. 



cliffs, and great subsided masses, producing much complication of 

 slippage often exceeding in amount the throw of genuine faults. 



The fossils are not well preserved, but some beds are largely com- 

 posed of Niimmulina and other Foraminifera, together with some 

 Mollusca more or less imperfect. 



Sirban is of special interest, as being a locality south-west of the 

 first great crystalline axis of the Himalaya ; of which region the 

 paleeontologial geology is as yet little known, and affords a means 

 of comparing the formations on both sides of the above-mentioned 

 axis. In order to do this, it will be useful to abstract from the 

 papers of Dr. Stoliczka a tabular resume of the Himalayan formations 

 placed in comparison with those of Sirban : 



SlRBAN. 



nummulitic ... 

 Cretaceous 

 Jurassic 



I Unfossiliferous limestone 



( Fossiliferous zone 

 ? 



Spiti Shales 



Unconformity. 



! Thin-bedded limestone 

 and slaty shale... 

 Dolomite and Megalodon 

 limestone 



Belo^w the Trias / Siliceous Dolomite 



( Red Sandstone and shale 



Unconformity. 



Slate Series.. 



Attock Slates 



Dr. Stoliczka: Spitl 



Chikkim shale 





\ Chikkim limestonej 



} 



Gieumal sandstone ) 

 Spiti Shales ... ) 



\ Tagling limestone 

 \ Para limestone 

 Lilang series .' ? 



Cretaceous. 



Jurassic. 



Triassic. 



Kuling series ? 

 Muth series? 

 Babeh series ? 



V 



Carboniferous. 

 Silurian. 



It is apparent that though there is a general similarity, the two 

 regions on opposite sides of the crystalline axis show several points 

 of difference, though not so great as to deprive us of hope that they 

 may be brought into closer accordance by subsequent researches. 

 At present the main differences are rendered greater by the occur- 

 rence of marked unconformities in one region unrecorded in the 

 other. The area around Sirban has been subjected to great and con- 

 tinuous disturbance during long periods of time, and it would be 

 highly interesting, if possible, to find out whether these periods of 

 disturbance coincide with the eruptions of the volcanic rocks known 

 to exist in the interior of Cashmere. 



3. — On the Occubeence of Ammonites, associated with 

 Ceratites and Goniatites in the Carboniferous Deposits 

 OF THE Salt Bangs. By William Waagen, Ph.D., Geological 

 Survey of India. 



IN this Memoir, Dr. Waagen announces his discovery of the 

 association of Goniatites, Ammonites, and Ceratites in the same 

 bed with Froductus, Athyris, etc., and referred provisionally to the 



