We cooked our breakfast this morning under the trees just outside of the tower of Uvalde. We have tin plates, tin cups, knives and forks, iron spoons, a gunny bag as a table cloth, and one seat in the shape of a water keg among eight of us. Camped for the night at 8 p. m. Made 42 miles to-day. _August 4._--Left camp at 3 a. m. Reached Fort Clarke at 5 a. m. Left Fort Clarke at 1 p. m. I wrote to Mr. Birch to-day, informing him of my progress up to this point, calling his attention particularly to the attack on Captain Wallace, which resulted in the loss of that complete outfit. I further advised him of having drawn on him at 90 days’ date for the sum of five thousand dollars, payable at the Bank of Manhattan Company, New York, at which I knew he kept his account. I requested Mr. Birch to remit this money at once from California to the cashier of the bank, as our agent at San Antonio would need money to purchase new stock with which to replace those stolen by the Indians; this letter I addressed to Sacramento, the city which would be his headquarters during his stay in California. [Desiring to make this draft the basis of a further credit for our agent in San Antonio, I enclosed it to the firm there who had agreed to make advances to the line. I requested them to continue such advances according to promise, and further desired them to collect this draft of $5,000, passing the same to the credit of the line on open account. In consequence of Mr. Birch’s death this draft was not paid at maturity, but returned protested to Texas, and is supposed to have been in the mail on board the steamer Opelousas, which was lost in the Gulf.] Before leaving San Antonio I procured an order, which General Twiggs gave me very cheerfully, requesting the commanders of the military posts in his division to give me an escort for the mail whenever I asked it. I did not deem it necessary at this time to ask for one, as I had with me twenty well-armed men. Under any circumstances, however, when we were required to make mail speed, this order for an escort would prove useless, inasmuch as by its terms I was required to furnish transportation to the soldiers. We could not do it and make mail time. To escort a train of supplies for us, at any time, such an order would prove very acceptable, when the speed is about one-half that of the mail. In this same order of General Twiggs, of which I regret not having a copy, he gave us permission to place our mules in the government herd, and also to keep an hostler with them at each of the military posts. Camped for the night, at 10½ p. m.; made 42 miles to-day. August 5. Left camp at 4.40. Leaving Fort Clarke may be properly described as leaving the settlements for the Indian country. This fact in connexion with the recent accident to our train made us all now doubly cautious on our day and night guards.