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The larger corn stalk-borer
The greenhouse thrips. (Heliothrips
Hawks and owls from the standpoint of the farmer
Investigations of rusts
Mortality losses are low in managed forests
History and status of tobacco culture
The corn leaf-aphis and corn root-aphis / F. M. Webster
The clover root-borer. (Hylastinus obscurus Marsham.)
National reservations for the protection of wild life
Building up a poorly stocked farm forest