Before crude oil and the combustion engine, the industrialized world relied on a different kind of power - the power of the horse. Horses in Society is the story of horse production in the United States, Britain, and Canada at the height of the species' usefulness, the late nineteenth and early twentieth-century. Margaret E. Derry shows how horse breeding practices used during this period to heighten the value of the animals in the marketplace incorporated a intriguing cross section of influences, including Mendelism, eugenics, and Darwinism. Derry elucidates the increasingly complex horse world by looking at the international trade in army horses, the regulations put in place by different countries to enforce better horse breeding, and general aspects of the dynamics of the horse market. Because it is a story of how certain groups attempted to control the market for horses, by protecting their breeding activities or 'patenting' their work, Horses in Society provides valuable background information to the rapidly developing present-day problem of biological ownership. Derry's fascinating study is also a story of the evolution of animal medicine and humanitarian movements, and of international relations, particularly between Canada and the United States.

In Masterminding Nature, Margaret Derry examines the evolution of modern animal breeding from the invention of improved breeding methodologies in eighteenth-century England to the application of molecular genetics in the 1980s and 1990s. A clear and concise introduction to the science and practice of artificial selection, Derry's book puts the history of breeding in its scientific, commercial, and social context.

Masterminding Nature explains why animal breeders continued to use eighteenth-century techniques well into the twentieth century, why the chicken industry was the first to use genetics in its breeding programs, and why it was the dairy cattle industry that embraced quantitative genetics and artificial insemination in the 1970s, as well as answering many other questions. Following the story right up to the present, the book concludes with an insightful analysis of today's complex relationships between biology, industry, and ethics.