The Library now has online access to the Monthly Catalog of U.S. Government Publications, 1895-1976.

For finding U.S. federal publications, the Monthly Catalog ("MoCat") is an invaluable complement to Orbis (in which the cataloging of the U.S. federal depository print collection is nearly complete) and WorldCat, not least because MoCat indexes publications that were not distributed through the depository program.

The resource is available in Orbis and through the A-Z list of databases.