RT Journal Article SR Electronic T1 THE ULTRA-MICROSCOPE AND THE CANCER GERM JF Science JO Science FD American Association for the Advancement of Science SP xii OP xii DO 10.1126/science.62.1602.0xii VO 62 IS 1602 YR 1925 UL http://science.sciencemag.org/content/62/1602/xii.1.abstract AB