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
Agricultural Extension work was established in 1862 as a portion of the socalled Land Grant College Act. This act reads as follows: "In order to aid in diffusing among the people of the United States useful and practical information on subjects relating to agriculture and home economics, and to encourage the same, there may be continued or inaugurated, in connection with the college, agricultural extension work which shall be carried on in cooperation with the United States Department of Agriculture.
Lee, C. D.
"Veterinary Medical Extension,"
Iowa State University Veterinarian: Vol. 16
, Article 11.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol16/iss3/11