1842. J Notice of the Mammals of Thibet. 289 



46, 47. Genus Lagomys, L. Nipalensis et Royli. Both are said to be 

 very common in Tibet, even much more so than in the Himalayan dis- 

 tricts : but I have no specimens from beyond the snows, and trust to 

 native information upon sight of the skins in my possession. The whole 

 ground on the way from Kooti to Digurchee is said to be often covered 

 by immense groups of Lagomydes, whose burrows render the roads un- 

 safe for horsemen. The Arctomides collect in the same manner, but in 

 much smaller numbers. 



Nepal, Id April, 1842. 



N. B. Those who would consult this Tibetan Catalogue with advan- 

 tage, had better first refer to the Catalogue of Nipalese Mammals, pub- 

 lished in the last No. of the Journal. 



Plates attached to this Paper. 



1. Vulpes Ferrilatus. 



2. Felis Nigripectus. 



3. Lepus Pallipes. 



4. Ovis Hoonia, tame. 



Some concluding Remarks forwarded for insertion with Capt. Tremen- 

 heere's Report on the Tin Ground of Mergui. 



Of the existence of tin in considerable quantities in the province 

 of Mergui, there cannot, from the facts above stated, be much question ; 

 and from the trial of the produce of one man's labour in a given time, 

 there appears to be sufficient to justify every expectation of a pro- 

 fitable employment of labour on an extensive scale. 



The places at which the trials were made, were not selected 

 as the best from previous information, but were arrived at more by 

 accident than design, and the stanniferous gravel and sand collected 

 where the bed was tolerably level, stream slack, and where the greatest 

 deposit appeared to have recently occurred. 



No part of the bed of the Thabawlick, which was examined, was 

 found wholly destitute of tin, and it is reasonable to conclude, that the 

 ore exists in numerous spots, especially in the vicinity of the hills from 

 which the streams arise, in far greater abundance than is shewn above. 



The results, therefore, which are given in detail, can only be 

 considered rough approximations to the quantity of tin these streams 

 would afford, and to the probable out-turn with an establishment pro- 

 perly superintended. Much economy in labour might be effected in 

 collecting the sand and gravel for the washers, but no better mode 

 could, I think, be adopted in separating the tin in the first instance, 



