216 Proceedings of the British Association. 



Until the quality of the samples sent has been tested, and it is 

 ascertained that there is a bed sufficiently productive to be worked 

 with profit, it is hardly worth while reporting at any great length on 

 the product, but I may add, if it answers expectations on the above 

 points, that the situation is most favourable in being so near the Bru- 

 mahpooter, at a point (Dibroo Mookh,) where it would be peculiarly 

 advantageous to have a coal depot in the event of steam navigation 

 being introduced. 



7th. We received intelligence of three other small rivers flowing 

 from the northern hills into the Boori Sooti of the Brumahpooter 

 between the Dirjmoo and the Dihong rivers, and we saw the mouth 

 of another hill stream, called the Demoo, an affluent of the former : 

 it is probable that an examination of the hill courses of all these 

 streams will lead to the discovery of more veins of a similar coal. 



I have picked up bits of it in the beds of the Soobunsheri and 

 Soondrie rivers of the north bank, but though I have examined the 

 hill courses of both these streams, I never came upon any veins or 

 beds of coal. 



8th. I am sending by to-day's dawk a box containing a few more 

 samples, and a fragment of the rock with a bit of the coal attached 

 to it. 



Fifteenth Meeting of the British Association for the Advancement of 



Science. 



Friday, June 20th. 



Section A.— MATHEMATICAL AND PHYSICAL SCIENCE. 



' On the Influence of Friction on Thermo-Electric Phenomena/ 

 by Prof. P. Erman. — This communication was made by his son, 

 M. Adolphe Erman, who had been invited to the Magnetical Con- 

 ference. 



M. Paul Erman examined the influence which friction, at the point 

 of contact of two heterogeneous metals, exercises on the needle of a 

 Nobili multiplier, combined with the metals. He then briefly recapi- 



