Description: A map of the United States from the U. S. Department of Agriculture (1922) showing the percentage of hogs on farms that were registered as pure bred as of January 1, 1920. Place Names: Agriculture, Massachusetts, Connecticut, New Hampshire, North Dakota, Illinois, South Dakota, Oregon, Indiana, Minnesota, Oklahoma, hog ISO Topic Categories: boundaries,
inlandWaters,
oceans,
farming Keywords: Pure Bred Hogs, physical, political, statistical, pure bred hogs as a percentage of all hogs on farms on january 1 1920, kAgriculture, physical features, country borders,
major political subdivisions, agriculture, boundaries,
inlandWaters,
oceans,
farming, Unknown, 1920 Source: , United States Department of Agriculture Yearbook 1922 (Washington, DC: Government Printing Office, 1923) 194 Map Credit: Courtesy the private collection of Roy Winkelman |
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