To access search results for all Yale collections, including digital images and journal articles, use the Quicksearch function above.
Orbis - Yale's main library catalog, containing records for all the collections except the Law Library, which is covered by the Morris catalog, listed below.
Morris - The catalog for the Lillian Goldman Law Library. Only searches the Law collection.
WorldCat - A database of worldwide catalog records. Each title you search for will list institutions that hold the item.
HathiTrust - Digital library containing millions of volumes from participating institutions. The entire repository is full-text searchable, though items under copyright are not fully viewable.