At half an hour past nine I marched, and we had not proceeded two miles, the heat absolutely suffocating, when we were met by a convoy of camels, loaded with most excellent water. This very seasonable supply had been forwarded to us from Moila, owing to my having sent on to the officer commanding at that post, to say how distressed I was for water from the leakage of our mussacks. Many of the soldiers quitted their ranks, and eagerly ran up to the camels to seize upon the water. I had no little difficulty in restraining them. I even told the officers to acquaint their men, that I would not permit the camels to be unloaded if the least irregularity took place. This had an immediate effect; and as the detachment stood in open column of half companies, the whole, in less than an hour, were regularly served with an ample supply, besides filling their canteens; as this water came in large earthern jars, it was quite cool, and had such an astonishing effect upon the troops, that we were enabled to get on with great vigour, and at half-past one on the 21st of July, we reached Moila. This extraordinary spot is situated in a ravine between steep and rugged rocks, and is uncommonly romantic. Here, then, I found it absolutely necessary to halt, that is, to remain till the evening of the 22nd, as the men stood in the greatest need of a little repose. In the course of the day many Arabs came to the camp with various articles of provisions for sale. Mutton we received as rations in abundance,--indeed at every post in the desert where water was to be had, even in the smallest quantity, General Baird had made depôts of provisions; therefore we had only to carry the necessary supply for those halting-places where _no water was to be found_. All our stragglers reached the camp before two P.M. of this day.