Mathematician (Group theory; high voltage transmission; elementary differential equations; mathematical physics; corona losses in high voltage transmission lines). A.B., 1909: Indiana State Normal School; A.M., 1919 and Ph.D., 1921: University of Illinois. Head, Mathematics Dept., University of New Mexico, 1914-1917; Assistant Professor, Pennsylvania State College, 1921-1922; Associate Professor, Purdue University, 1922-1930; Professor and Head, Dept. of Mathematics and Astronomy, 1930-.