Enlarged Prints from Library Microforms, A Study of Processes, Equipment and Materials

摘要

William R. Hawken, whose investigations of Photocopying from Bound Volumes were published last year, has presented the library world with another study sponsored by the Library Technology Project of the American Library Association and financed by a grant from the Council of Library Resources, Inc., of Washington, D. C. This time the research effortcentered on microform reader-printers, or machines which not only make possible the reading of a projected image of a microform, but which will also reproduce such images in enlarged form.