[ 48 ] Gertrude L. Annan, "Printing and medicine," Bulletin of the Medical Library Association, March 1940, vol. 28, p. 155.
[ 49 ] Wyndham B. Blanton, Medicine in Virginia in the eighteenth century, Richmond, Virginia, 1931, pp. 33-34.
[ 50 ] Maurice Bear Gordon, Aesculapius comes to the colonies, Ventnor, New Jersey, 1949, p. 39.
[ 51 ] Fielding H. Garrison, An introduction to the history of medicine, Philadelphia, 1924, pp. 405-408; and Richard H. Shryock. The development of modern medicine, New York, 1947, pp. 51-54.
[ 52 ] Kittredge, op. cit. (footnote 25).