An examination of the difficulties in fundamentally differentiating humans from all other animals. The way in which humans articulate identities, social hierarchies, and their inversions through relations with animals has been a fruitful topic in anthropological and historical investigations for the last several years. The contributors to this volume call attention to the symbolic meanings of animals, from the casting of first-year students as goats in medieval universities to the representation of vermin as greedy thieves in early modern England. But the essays in this volume are also concerned with the more material and bodily aspects of animal-human relations, like eating regulations, aggression, and transplanting of animal organs into human beings [xenotransplantation]. Modern biologists have increasingly problematized the human-animal boundary. Researchers have challenged the supposedly unique ability of humans to use language. Chimpanzees and gorillas, it has been argued, have learned to communicate using American Sign Language. In addition, some scientists regard the sophistication of modes of communication in species like dolphins and songbirds as undermining the view of humans as uniquely capable of complex expressions. As studies of nonhuman primates threaten to compromise the long-held assumption that only humans possess self-awareness. The question becomes: How can one firmly differentiate human beings from other animals? Contributors include Piers Beirne, Richard W. Burkhardt, Jr., Mary E. Fissell, Paul H. Freedman, Ruth Mazo Karras, Susan E. Lederer, Rob Meens, John H. Murrin, James A. Serpell, and H. Peter Steeves. Angela N. H. Creager andWilliam Chester Jordan are Associates of the Shelby Cullom Davis Center for Historical Studies, Princeton University.

We normally think of viruses in terms of the devastating diseases they cause, from smallpox to AIDS. But in "The Life of a Virus, " Angela N. H. Creager introduces us to a plant virus that has taught us much of what we know about all viruses, including the lethal ones, and that also played a crucial role in the development of molecular biology.
Focusing on the tobacco mosaic virus (TMV) research conducted in Nobel laureate Wendell Stanley's lab, Creager argues that TMV served as a model system for virology and molecular biology, much as the fruit fly and laboratory mouse have for genetics and cancer research. She examines how the experimental techniques and instruments Stanley and his colleagues developed for studying TMV were generalized not just to other labs working on TMV, but also to research on other diseases such as poliomyelitis and influenza and to studies of genes and cell organelles. The great success of research on TMV also helped justify increased spending on biomedical research in the postwar years (partly through the National Foundation for Infantile Paralysis's March of Dimes)--a funding priority that has continued to this day.