Eos is carrying biographies and photographs of all candidates for President-elect, General Secretary, and Foreign Secretary of the Union and for President-elect and Secretary of each Section. In addition, statements by the candidates for Union offices and for Section President-elect will appear. The material for the Hydrology Section appears below. The material for the sections of Geodesy, Geomagnetism and Paleomagnetism, and Planetology appeared in the August 30 issue; for the Atmospheric Sciences Section in the September 27 issue; for the Tectonophysics section in the October 11; and for the Seismology Section in the October 18 issue. The slate of candidates for all offices was carried in the June 21 issue.