British Butterflies (King Penguin Books Series No. 41). Edmund Brisco Ford. Illustrated by Paxton Chadwick. Penguin Books, 1951. First edition.
Ford (1901-1988) was a British ecological geneticist. He was a leader among those British biologists who investigated the role of natural selection in nature. As a schoolboy Ford became interested in lepidoptera, the group of insects which includes butterflies and moths.