RT Journal Article SR Electronic T1 Secondary School Education JF Science JO Science FD American Association for the Advancement of Science SP 329 OP 329 DO 10.1126/science.118.3064.329-a VO 118 IS 3064 A1 FOURMAN, VICTOR G. YR 1953 UL http://science.sciencemag.org/content/118/3064/329.2.abstract AB