摘要：Before beginning I am going to ask you to bear in mind two things: 1st. This is not intended as a formal presentation of the subject but merely as an introduction to a discussion in which it is hoped all will participate. 2nd. The Library from which it emanates is not connected with either a medicai society or a college, but is a free public library, open to all citizens of a great state, and thus its methods and problems are different from yours in many respects. Library extension has two meanings: the establishment of new libraries, or the enlargement of the scope and activities of libraries already in existence.
