RT Journal Article SR Electronic T1 INSTITUTE OF RESEARCH AT LEHIGH UNIVERSITY JF Science JO Science FD American Association for the Advancement of Science SP 329 OP 329 DO 10.1126/science.60.1554.329 VO 60 IS 1554 YR 1924 UL http://science.sciencemag.org/content/60/1554/329.1.abstract AB