The Thirteenth William Bowie Medal will be awarded to Roger Revelle, Professor at Harvard University's Center for Population Studies, Boston, Massachusetts, at AGU's Honors Luncheon on April 8, 1968, in recognition of outstanding research accomplishments and ‘unselfish cooperation in geophysical research.’The first award of the Walter H. Bucher Medal will be made at the AGU Honors Luncheon on Monday, April 8, 1968. The medal will be awarded in recognition of an outstanding contribution to the basic knowledge of the Earth's cr