H.G. Laveral (right) and unidentified herdsman dipping a pig in lime and sulphur solution to control mange at the University of Minnesota, St. Paul campus. The poster in the background, produced by the University of Minnesota Extension Service, shows a hog louse and a hog mange mite.
Dr. Al Leman with piglets. Leman was an extension veterinarian at the University of Minnesota. In 1974, he helped to organize a conference for Minnesota pig farmers. Leman left the University of Minnesota in 1986. The University has continued to sponsor the conference, and named it in honor of Dr. Leman in 1992.
Hog restrained for a medical procedure. This photograph documents the University's Short Course for veterinarians, a form of continuing education that was available to all Minnesota veterinarians.