Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
During this centennial year of the American Veterinary Medical Association many of us have given thought to the changing image of the veterinary profession. In visualizing the veterinarian of 100 years ago we see livery stables, archaic treatments of imaginary ailments such as "wolf in the tail" or "hollow horn" and "horse doctors" possessing little or no formal education.
Christensen, George C.
"The Changing Image,"
Iowa State University Veterinarian: Vol. 26
, Article 2.
Available at: https://lib.dr.iastate.edu/iowastate_veterinarian/vol26/iss1/2