Books by L. S. Evans:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Evans, L. S. (Lewis Saxton), 1913-: Using 2,4-D safely (U.S. Dept. of Agriculture, 1948), also by R. W. Heinen and John W. Mitchell (page images at HathiTrust)
Find more by L. S. Evans at your library, or elsewhere.