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
A 7-month-old Angus bull was admitted to the Stange Memorial Clinic, April 12, 1949. The bull had a proliferative epithelial growth, about % inch in diameter, covered with hair on each eye. In other respects, the bull was apparently normal.
Bunge, Leland F.
"Bilateral, Corneal, Dermoid, Cysts,"
Iowa State University Veterinarian: Vol. 11
, Article 10.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol11/iss3/10