Reviews the status of photostats and microfilm at the New York Public Library, including evaluations of the demand for each and the relationship between the two forms during the 1930s, 1940s, and 1950s. Reasons why the two forms continue to coexist--even though it was predicted that microfilm would replace photostats--are discussed. (24…

Argues that the quality of information provided to scholars by microform sets of manuscript collections, as compared to original manuscripts and critical editions, does not justify the expansion of research libraries' collection boundaries and fiscal responsibilities to include such materials. (CLB)