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NATURE AND THE FARMER
Map of General Pattern of Great Soil Groups
Distribution of the Important Zonal Groups of Soils in the U S
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acres Agriculture American amount areas Association average became began building California cattle Census cent Central century Chicago cities Company continued cooperative corn cost cotton crops Dakota Department developed dollars earlier early East Eastern Economic effect efforts experiment fact farm farmers federal fields five four frontier further Government grain greater growers growing growth half hand History Homestead House hundred Illinois improved increased Industry interest Iowa John Kansas labor land later less lines living machines methods Michigan miles Mississippi movement nearly Nebraska needed North Northern noted Pacific period persons Plains plants plow population practice Prairies Printing Office problem production railroad range rates regions Report result River sheep showed soil sold South Southern supply Texas thousand tion transportation United University wage Washington West Western York