Capsules

P: In Utah County, Utah, where the polio rate has been high this summer, one group of youngsters is now getting injections of a blood particle known as gamma globulin; a second group, dummy shots. Purpose: to see whether gamma globulin, which is especially rich in natural antibodies, will do for humans what it seems to do for laboratory animals--prevent virulent polio strains from leading to paralysis.

P: Two Boston doctors had encouraging news for rheumatic fever victims: of 1,000 cases studied, 605 were still alive (and most of them leading completely normal lives) 20 years after the disease hit.

P: After testing 280 Air Force recruits, Johns Hopkins psychologists advised draft boards not to "judge a book by the cover": men with trembling hands often perform better under pressure than those who turn up for induction placidly composed.

&182; In California, the Lions Clubs are buying lighted walking sticks ($7.50 apiece, with batteries) and giving them away to the blind. The inventor: William A. Caustin of San Jose, who could not forget the sight of a blind man trying to cross a busy street at night.

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