This collection investigates the intellectual foundations and personal correspondence that shaped R.A. Fisher's seminal work, The Genetical Theory of Natural Selection. Editor J. H. Bennett compiles previously unpublished papers and letters between Fisher and contemporaries such as Leonard Darwin to provide context for the development of modern evolutionary biology. The text examines how Fisher's early research interests, including blood group analysis and the implications of inbreeding, informed his broader theories on natural selection and eugenics.

Experts recognize this volume as a critical resource for understanding the historical development of statistical genetics. Readers frequently note the academic density of the prose, which serves as a specialized reference for historians of science and evolutionary biologists.