A grateful change in the weather promised rain; but suggested to me a contingency for which I had not provided in my letter to Mr. Kennedy, and Graham was gone. A flood coming down, might fill the channel of the other, and prevent Mr. Kennedy's party from crossing to fall into my track; or, if that should finally prove only an ana-branch, shut me up in an island. On this point I again, therefore, wrote to Mr. Kennedy, and buried my letter at the spot marked by Graham, and according to marks on trees, as I had previously arranged with him. I then instructed him to examine the dry channel far enough upwards (halting his party for the day) to ascertain whether it was a separate river, or an ana-branch; and, in the latter case, to keep along its banks, and so avoid the possible difficulty of crossing it during rainy weather. Thermometer, at sunrise, 65 deg.; at noon, 70 deg.; at 4 P. M., 66 deg.; at 9, 64 deg.;--with wet bulb, 63 deg.. Mean height above the sea, 586 feet. 26TH APRIL.--Sunday. Corporal Graham returned from the depot camp at 1 P. M. The sky continued cloudy, and the barometer low. High wind from the west arose about 3 P. M. Thermometer, at sunrise, 63 deg.; at noon, 78 deg.; at 4 P. M., 78 deg.; at 9, 56 deg.;--with wet bulb, 53 deg.. 27TH APRIL.--The party set off early. We found that a river from the north joined the channel we were about to follow up in its course from the east. The northern river contained water in abundance; and I determined to follow it up so long as the course was favourable, and water remained in it. The general course was much the same as that of the first (about 39 E. of N.). The bed and ponds increased; and after following it up about eleven miles, I encamped the party, and rode northward to ascertain if it was likely to change its course. In ten minutes, I came upon a splendid reach, extending north-west as far as I could see it. Lat. of our camp, 27 deg. 42' 42" S. Thermometer, at sunrise, 37 deg.; at noon, 69 deg.; at 4 P. M., 72 deg.; at 9, 57 deg.;--with wet bulb, 55 deg..