Shields, G.O. (1891). The American book of the dog. Chicago, Illinois: Rand, McNally & CompanyMastiffs in Forest and Stream, August 4, 1894Sewell, A.J. (1907). The dog’s medical dictionary. London, England: George Routledge & Sons, LimitedLytton, J. (1911). Toy dogs and their ancestors. New York, New York: D. Appleton and CompanyLytton, J. (1911). Toy dogs and their ancestors. New York, New York: D. Appleton and CompanyDogdom, March 1913Dogdom, March 1913Dogdom, May 1913Dogdom, June 1913Anon. (April 1918). The dog of the hour. House and Garden, p. 86Dogdom magazine reported the death of its editor and manager Eugene R. Cole in its May 1913 issue with two pages (below). Dogdom, May 1913Two ads from the classifieds at the end of Forest and Stream, April 8, 1886