Mi ... AN ^SSSAY ON 



€f the day with an excellent instrument, its distance being previously 

 ascertained, by observation, from- tiie well determined extremities of a 

 suflicient base, in the level country of Rohiikhund, and allowing an eighth 

 of the intercepted arch, which is supposed to exceed the mean of ter- 

 restrial refraction ; its height is calculated at twenty-one thousand feet 

 above those plains. 



-' The usual rise of the rivers at Deo'praydg., ascertained by measuring 

 -^vith a line the distance between the water's limits on a perpendicular scarp, 

 is about forty-five or forty-six feet ; the nature of the channels nof ad- 

 •initting of any increase in breadth. They are subject to irregular and 

 vtemporary swells, of sometimes ten feet perpendicular, in heavy or sudden 

 ifalls of rain/ 



I ENTiREL-Y subscrrbc to ihc arguments of Lieut. Webb, which to my 

 apprehension are conclusive. No doubt can remain, that the different 

 branches of the river, .above Haridwdr, take their rise on the southern side 

 ©f the Himalaya, or chain of snowy mountains : and it is presumable, that 

 all the tributary streams of the Ganges, including the Sarayii (whether its 

 .alleged source in the Mdnasardvara lake be credited or disbelieved,) 

 ;and the Tamu?id, whose most conspicuous fountain is little distant from 

 that of the Gatiges^ also rise on the southern side of that chain of moun- 

 tains. 



From the western side of the mountains, after the range, taking a 

 sweep to the north, assumes a new diredtion in the line of ihe meridian, 

 arise streams tributary to the Indus, and perhaps the Lidus itself, 



^ From the other side of this highest land, (for it is hardly necessary to, 

 xemark, that the remotest fountains of rivers mark the highest ground;) 



a declivity to the north or west gives to the mountain torrents, ami 



