On the 17th we proceeded to Julrez, a collection of wretched hovels of no interest, and on the 18th, after a march of ten miles through a succession of valleys and defiles, we reached the Kuzzilbash fort, Suffaed Kulla. About two miles before we arrived at our encamping ground we passed near the Sir-e-chusm or "fountain head," one of the sources of the Cabul river; it is a large pool stocked with a multitude of enormous fish that are held sacred by the few inhabitants of the adjoining hamlets, and which are daily fed by an aged fanatic, who for many years has devoted himself to their protection. As it would be deemed in the highest degree sacrilegious to eat any of these monsters, they are never molested, and are so tame as to come readily to the hand when offered food. Of course, my necessary compliance with the prejudices of the guardian of the fish prevented the exercise of my Waltonian propensities. A little further on is a remarkable bourj or _watch-tower_ isolated on a projecting rock, and supposed to have been built for the purpose of giving the chiefs of the little plain below, when at variance with the neighbouring mountaineers, notice of the approaching invader. At this point the valley is extremely narrow, being almost choked up with huge masses of rock hurled by the violence of some convulsion of nature from the sides of the impending precipices. There are several minor forts in the vicinity of Suffaed Kulla, which is the largest, and is at present occupied by a Kuzzilbash chief, who took advantage a few years ago of the temporary absence of its rightful owner, and acting upon the principle of "might makes right," possessed himself forcibly of it, and has held it ever since. He treated us with great kindness and attention, sending us most acceptable presents of fruit, with food for our followers and cattle. We here experienced to a great degree that remarkable daily variation of temperature so peculiar to these regions: in the gully the wind was bleak and cold, but when encamped under the shelter of the fort the heat from the sun's rays reflected from the smooth surface of the bare rock was so intense that the thermometer rose to 100 of Fahrenheit. While in camp at Cabul I frequently experienced the same rapid change, for it would sometimes be a hard frost at day-break and an Indian summer heat at mid-day.