Zavoral, H. G.2014-12-302014-12-301954-12https://hdl.handle.net/11299/16839112 pages; includes photographs, plans and drawings. This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu.en-USHog health makes wealth (revised December 1954)Newsletter or Bulletin