NOTES ON THE HIMALAYAN MOUNTAINS The great flood of the Indus in 1841 seems to have been one of the most tremendous cataclysms recorded as having occurred on the continent of India. The exact reason of it was for many years unknown. Major Cunningham suggested that it was due to the bursting of an ice-dammed lake on the Shayok river. Major Becher seems, however, to have been the first who expressed a belief that it was caused by a landslip blocking the Indus near Gor. In a letter (_Journ. Asiat. Soc. Bengal_, vol. xxviii. p. 219) he writes that a mountain called Ultoo Kunn, near Gor, owing to an earthquake, subsided into the valley of the main Indus. Drew, in his book on Kashmir (p. 415), gives the following description: 'The flood of 1841 was in this wise. It occurred, as near as I can make out, in the beginning of June of that year. At Atak, a place twelve or fifteen miles below where the latitude-parallel of 34° crosses the Indus, the river had been observed during several months, indeed from December of the previous year onwards, to be unusually low; in the spring it had risen a little from the snow melting, but only a little, so that at the end of May (when in ordinary years the volume has greatly increased) it was still extraordinarily low. This in itself should have been enough to warn the people who dwelt by its banks, but so little was it thought of that a portion of the Sikh army was encamped on the low plain of Chach which bordered the river. One day in the beginning of June, at two in the afternoon, the waters were seen by those who were there encamped to be coming upon them, down the various channels, and to be swelling out of these to overspread the plain in a dark, muddy mass, which swept everything before it. The camp was completely overwhelmed; five hundred soldiers at once perished; only those who were within near reach of the hill-sides could hope for safety. Neither trees nor houses could avail to keep those surprised in the plain out of the power of the flood, for trees and houses themselves were swept away; every trace of cultivation was effaced; and the tents, the baggage, and the artillery, all were involved in the ruin. The result was graphically described by a native eye-witness, whose words were, "As a woman with a wet towel sweeps away a legion of ants, so the river blotted out the army of the Raja."' Drew was probably the first to actually visit the place where the block occurred. And a villager from Gor pointed out to him the exact spot where the debris of the landslip blocked the river. These floods seem to be of somewhat frequent occurrence. In 1844 one came from the Tshkoman valley above Gilgit. In 1858 another did great damage at Naushahra. The Indus at Attock (Atak) on 10th August was very low. In the early morning it rose ten feet in two hours, and five hours later it had risen no less that fifty feet, and continued rising till it stood no less than ninety feet higher than in the morning. It is