George H. Sibley 11, has taken the position of swimming instructor at the Big Tree Swimming Pool left vacant by the resignation of H. R. Howes sG.B. Sibley assisted Frank Sullivan, coach of the Princeton swimming team, with his Freshman swimming and water-polo teams. He was on Princeton's water-polo team for three years and on the swimming team for one year. He will be at the Big Tree Swimming Pool every Monday, Wednesday and Friday from 1.30 till 6.30.