These parson-naturalists made a significant contribution to the development of British scientific natural history, and played an important role in the foundation of the conservation movement and in the origins of organisations such as the Royal Society for the Protection of Birds and the National Trust. This book presents a full range of interesting and sometimes eccentric individuals from the early days of the Christian faith in the British Isles to modern times. Missionary endeavor and service to the Empire brought the influence of the English parson-naturalist to the very ends of the earth. A key to the appreciation of the success of the parson-naturalist phenomenon is understanding the social milieu in which these men worked. Until the twentieth century clergy were members of a relatively tightly-knit social group, often related to one another by kinship or marriage; a man's clerical colleagues were also his scientific colleagues and his kinsfolk.