Feature Secrets of Energy Source Sought in Chlorophyll Study By Science News Magazine Issue: Vol. 23 No. #614, January 14, 1933 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