The Golden Bough

In English, by Sir George Frazer, 1890, in two volumes

An expanded thirteen-volume edition was published between 1911-1915. A classic work of anthropology exploring the evolution of magical, religious, and scientific thought. An abridged version is available in most U.S. Libraries. (Petersen, Sandy, and H. P. Lovecraft. Call of Cthulhu Keeper Rulebook Horror Roleplaying in the Worlds of H.P. Lovecraft. Chaosium, Inc., 2016.)