Read it through once

Jack is not very well to-day, it is easy to see; but boy as he is, he is too much of a man to speak of it. He exposed himself to the sun too much yesterday, but since it came of his earnest desire to learn, and to make this journey as useful as the opportunities will allow, no one seeks to discourage him by fault-finding. We missed him an hour from the camp, and then found him some distance away, by the edge of a brook, and with no umbrella to protect him from the fierce sun. If he had been used to going without his umbrella, it would have been well enough, of course; but he was not. He was just in the act of throwing a clod at a mud-turtle which was sunning itself on a small log in the brook. We said: