ScientificAmerican1930-08.jpg Scientific American 1926-09ThumbnailsScreen Guide 1946-04Scientific American 1926-09ThumbnailsScreen Guide 1946-04Scientific American 1926-09ThumbnailsScreen Guide 1946-04Scientific American 1926-09ThumbnailsScreen Guide 1946-04
Fighting bark beetles with fire. Ranger-naturalist forest preserver uses flame thrower to kill beetles in tree bark without permanently harming tree (or so it would appear).



Artist: Howard V. Brown

Source: Steve Kirch, collector, and creator of this website about SCIENTIFIC AMERICAN in the past

Restoration by: magscanner