MEES, Carl Leo, physicist, born in Columbus, Ohio, 20 May, 1853. He was graduated at Ohio university and at Starling medical college in 1875, meanwhile, in 1870-'5, holding the office of assistant chemist of the Ohio geological survey. Dr. Mees was then called to the professorship of chemistry and physics in the Louisville, Kentucky, schools, where he remained until 1880, after which he spent some time in study at the Imperial university in Berlin, Germany. In 1882 he became professor of physical science in Ohio university, and in 1887 he was called to the chair of physics in Rose polytechnic school, Terre Haute, Indiana Dr. Mees is a member of scientific societies, and in 1887 was secretary of the physical section of the American association for the advancement of science, of which organization he has been a fellow since 1876. He has contributed the results of his researches to scientific periodicals, including determinations of wind velocity, comparative measurements, and photographs of blood.