POPULAR SCIENCE 5724 REVIEW. A QUARTERLY MISCELLANY OF GLACIERS AND ICE. By W. F. Barrett. Illustrated ON THE PHENOMENA OF MOTION AND SENSITIVENESS IN CLIMBING RAISED BEACHES AND THEIR ORIGIN. By Edward Hull, B.A., F.G.S. 169 HYDRE, OR FRESH-WATER POLYPES. By Rev. W. Houghton, M.A., |