RT Journal Article SR Electronic T1 THE BIOLOGICAL EXPERIMENT STATION OF THE UNIVERSITY OF ILLINOIS JF Science JO Science FD American Association for the Advancement of Science SP 729 OP 730 DO 10.1126/science.2.48.729-a VO 2 IS 48 YR 1895 UL http://science.sciencemag.org/content/2/48/729.2.abstract AB