A fun fantasy "field guide", Fearsome Creatures of the Lumberwoods, With a Few Desert and Mountain Beasts was published in 1910, complete with lovely illustrations and Latin classifications. As in the tradition of all tall tales and folklore from the US and Canada, its stories are somewhat embellished and elaborated upon.
Cox himself was a career writer of mystery novels, westerns, and short stories for the paperback and pulp fiction markets that were so popular during his prime. He was in the process of writing his 81st novel when he passed away in 1988 at the age of 87.