They embrace a variety of interesting topics; among them are the following titles : '' Biographical Sketches of Deceased Physicians of Westchester County, N. Y." (1861) ; " On the Animal Substances employed as Medicines by the Ancients" (1862); " Diploteratology," or an essay on " Double-Monsters " (Trans, of the Med. Soc. of the State of y. Y., 1865-68) ; "A Brief History of the Discovery of the Circulation of the Blood " (Pop. Sci. Monthly, July, 1877) ; " Teratology " [Johmon's Universal Cychpcedia, vol. i v.); "Influence of the Maternal Mind in the Production of Malformations " {Amer. Journ. of Insanity, vol. xxvi. January, 1870) ; " Sketches of the Lives, Times

HISTORY OF WESTCHESTER COUNTY.

and Works of some of the Old Masters of Anatomy, Surgery and Medicine " (consisting of twenty sketches, in Annals of Anatomy and 8ur(jery, vols, ii.-viii., 1880-83); "History of Surgery" (International Encyclopaedia of Surgery" vol. vi., N. Y., 1886). Several minor articles could be added to the above list.

Dr. Fisher has shown a profound interest in the literature of his profession, both ancient and modern. His library, which is quite well known to the medical scholars of the country, contains about four thousand volumes, including many of the rarest books now existing, in most of the departments of the healing art. There is, perhaps, no collection of the medical classics equal to his to be found in private hands in the United States. It includes large series of works illustrating the development of anatomy, surgery, materia medica and medicine, from the earliest periods to the present time. His collections of works pertaining to the history of medicine, and the biography of physicians and surgeons, are quite extensive.