_July 20th._--I was much grieved at daylight to find that about forty men were still behind. I trembled at the horrors these poor fellows would be exposed to, should they be left destitute and forlorn in the desert. After seriously reflecting upon this most melancholy circumstance, I sent for the chief Arab, who, as a kind of scheik, had some sort of control over the camel-drivers, and ordered him to collect some of the principal ones; as soon as they came to my tent, I told them the apprehensions I was under, and proposed to them to return in the track we had come the day before for at least seven miles, and promised to reward them liberally for every soldier they should bring up. All their attention was called forth by the mention of money, and they became eager to be useful. Twenty camels set off, and my brother, Captain Frederick Barlow, SIXTY-FIRST Regiment, very humanely volunteered, notwithstanding the _intolerable_ heat, to attend the camels. I filled a cag with a mixture of port wine and water, which he took with him, and it proved of the most essential service. At the distance of from four to six miles from camp, he picked up twenty-one poor exhausted fainting wretches, who, without this assistance, must have died in a very few hours: some not able to speak, and the whole totally incapable of walking a step further. One fine lad in particular, was so far gone, as to lay stretched out on the sand as if expiring; but upon pouring some of the wine and water down his throat, he gradually recovered, and he was brought into camp in a man’s arms on a camel. Water, and afterwards some wine, soon restored him to sufficient strength to enable him to proceed on a camel, with other sick men, that afternoon: before two o’clock all the absentees got into camp. This day we contrived to dine tolerably well; but for want of water to wet the bags, our wine was as hot as milk immediately from the cow,--the water we had to drink was the same, therefore to quench our thirst was impossible.