The research subjects ranged from cannibalistic flatworms to elderly patients in a Canadian psychiatric hospital. But both the psychiatrists and the flatworm fanciers were working with the same basic stuff: ribonucleic acid (RNA), which seems to be the chemical paper that carries the imprint of animal and human memories. Learned reports on the widely varied projects last week contained startling but strangely similar suggestions for the future. Some day, said the worm workers, students may be able to take their lessons in tablet form. Some day, said the psychiatrists, an old man's failing memory may be rejuvenated in much the same...
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