Philadelphia at the time of the founding of the Medical Library Association
(MLA) is described. Several factors that promoted the birth of the associa
tion are discussed, including the rapid increase in the labor force and the
rise of other health related professions, such as the American Hospital As
sociation and the professionalization of nursing. The growth of the public
hygiene movement in Philadelphia at the time of Sir William Osler's residen
cy in the city is discussed. Finally, the rapid growth of the medical liter
ature is considered a factor promoting the development of the association.
This article continues the historical consideration of the MLA begun in the
author's article on the three founders of the association. The background
information is drawn from the items listed in the bibliography, and the con
clusions are those of the author.