Contents

31 October 1947
Vol 106, Issue 2757

About The Cover

The four Silliman Lecturers who gave principal addresses during Yale University's Sheffield Scientific School Centennial pictured with the director of the School in front of Sterling Memorial Library. Left to right: George W. Beadle, biologist, California Institute of Technology; Ernest 0. Lawrence, physicist, University of California; Edmund W. Sinnott, director of the School; Linus C. Pauling, chemist, California Institute of Technology; and Wendell M. Stanley, pioneer in the field of virus research, Rockefeller Institute for Medical Research.