JOURNAL 



OF THE 



ASIATIC SOCIETY. 



Part II.— PHYSICAL SCIENCE. 



No. I.— 1869. 



Notes to accompany a Geological Map op a portion op the Khasi 

 Hills near longitude 91° E. ;—by Captain H. H. Godwin- Austen, 

 F.R.G.S. 



[Received 28th January, 1868.] 

 In contributing this paper to the Journal of the Asiatic So- 

 ciety, it will be first necessary, as an introduction to those un- 

 acquainted with these hills, to commence with a brief account of 

 the geology already published; this must form the base of all 

 further inquiry extended into portions hitherto unvisited. I can- 

 not, therefore, do better than briefly quote from the works of Thomas 

 Oldham, Esq., Superintendent of the Geological Survey, and H. B. 

 Medlicott, Esq., Deputy Superintendent in the same Department. 

 These able surveyors, by their researches in the neighbourhood of 

 Cherra Poonjee, have determined the superposition of the principal 

 formations as displayed there, and though many minor sub-divisions 

 have, no doubt, yet to be discovered and worked out, the main divisions 

 on this longitude will most probably remain as the above geologists 

 have laid them down. Mr. Medlicott in his report on the Coal of Assam, 

 &c* commencing at page 34, after mentioning the trap and metamor- 

 phic rocks north of Cherra, gives in detail an ascending series of 

 the stratified rocks. These he divides into three great Sections, as 

 follows : — ■ 



* Mem. Geol, Surv. of India, vol. IV. p. 387 etc. 



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