Feature Trailers on Highways Are Health Jekylls-and-Hydes By Science News Magazine Issue: Vol. 32 No. #847, July 3, 1937 Share this:Share Share via email (Opens in new window) Email Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Print (Opens in new window) Print Having trouble viewing this? Open in a new window