Kankakee Valley Post, Volume 3, Number 4, DeMotte, Jasper County, 8 June 1933 — How to Detect Gas Leak [ARTICLE]

How to Detect Gas Leak

Tomato plants are being used in the laboratories and greenhouse of Yale university as instruments to detect illuminating gas leaks and the presence of other toxic gases. Prof. Carl G. Deuber of the botany department of the university has found that in the presence of the merest traces of toxic gases the younger leaf stems of the tomato plant grow downward. This is an absolutely reliable test for illuminating gas leaks, he says.