About Margaret Derry Margaret E. Derry is an adjunct professor in the Department of History at the University of Guelph, and an associated scholar wth the Institute for History and Philosophy of Science and Technology at the University of Toronto. Books by Margaret Derry Masterminding Nature The Breeding of Animals, 1750-2010 by (author) Margaret Derry Art and Science in Breeding Creating Better Chickens by (author) Margaret Derry Horses in Society A Story of Animal Breeding and Marketing Culture, 1800–1920 by (author) Margaret Derry Ontario's Cattle Kingdom Purebred Breeders and Their World, 1870-1920 by (author) Margaret Derry
