In 1927 the foundation stock for this experiment was picked at random from the guinea pig colony of the Genetics Department at Iowa State College. Since then three generations of individuals, selected both for resistance and susceptibility to protein reaction, have been obtained.
Proceedings of the Iowa Academy of Science
©1931 Iowa Academy of Science, Inc.
Shrigley, E. W.
"Studies in the Selection for Susceptibility and Resistance to Anaphylactic Shock in Guinea Pigs,"
Proceedings of the Iowa Academy of Science, 38(1), 249-253.
Available at: https://scholarworks.uni.edu/pias/vol38/iss1/97