brings together, for the first time, many of the key documents of the modern science of sexuality that emerged in the late nineteenth century. The early pioneers of the new field of sexology examined and classified sexual behaviours, identities and relations. For years much of the material here has been "censored" - difficult to obtain, subject to restrictive circulation, or available only in medical archives. This volume offers readers access to the primary materials on which contemporary sexology is founded and, as such, it is an invaluable record for all those interested in how we have come to think about sex and sexuality over the last one hundred years.