Discusses the need for and problems associated with bibliographic control of microforms collections, and outlines various agencies' programs designed to improve access and standardize microforms cataloging. (Author)

The first of three articles describes procedures for using ANSI statistical methods for estimating the number of pieces in large homogeneous collections of microfiche. The second discusses causes of curl, its control, and measurement, and the third compares the advantages and disadvantages of cellulose acetate and polyester base for microforms.…

Discusses role of Library of Congress (LC) in cooperative preservation microfilming activities in United States, noting relationship of LC to library community, sharing of technical expertise and procedural experience, the actual filming, and adequate bibliographic control for preservation microforms. Aspects of three-year Optical Disk Pilot…