Thursday, 21st March, Brinkley Bluff, McDonnell Range. Rain has continued at intervals during the night; a great deal has fallen. A horse having gone into the creek to drink during the night, one of his hobbles became undone, and got fastened to his hind shoe. He was found this morning up to his body in water, and unable to move. Having relieved him, it was with difficulty he could get out. He is in a tremble all over, and can scarcely walk. The ground is so soft, even on the hills, that we cannot walk without sinking above the ankle. I should gain nothing by starting to-day. It would injure the horses more than a week's travelling.