Comparing the absolute altitude of the Satlej with that of the Bhagirathi, Fraser comes to some interesting conclusions about the ultimate source of the Ganges and the breadth of the Himalayan system : I The Sutlej certainly comes through the snowy hills; and it must be allowed that the difference of altitude, which these circumstances indicate, proves that the Bhagiruttee cannot do so, its course even at this point being so very elevated. If it does not come through the Himåla, its source cannot be far from hence (Gangotri).» He gives the mountainous region a breadth of 6o to 8o miles at most. He places the »Roodroo Himähi at the . centre of the snowy range and supposes that the mountainous land rather falls than rises to the north and N.E. of this mountain.