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Timber growing and logging practice in the Lake states : measures necessary to keep forest land productive and to produce full timber crops
The search for hardier fruits and nuts
A farm-management survey of three representative areas in Indiana, Illinois, and Iowa
Perennial rye-grass (Lolium perenne)
The beet-sugar industry in the United States
Grain-sorghum experiments at the Woodward Field Station in Oklahoma
Rubber and resin content of native and introduced plants of Canada
The pear leaf-worm
White-pine blister rust in western Europe
Nosema-disease
