"... a microfiche catalog of the Library's master negative holdings for monographs ... done as part of a project funded by the Andrew W. Mellon Foundation. The R̲e̲g̲i̲s̲t̲e̲r̲ contains approximately 200,000 cards representing about the same number of monographs, including pamphlets, filmed by the Library since the inception of its microfilming program (ca. 1938) through March 1983."
Fiches 128 & 129 are a register of Hebrew titles in the collection.