The online catalogues do not contain all University Library material.
The pre-1978 Supplementary Catalogue
Find the pre-1978 Supplementary Catalogue is in the south corridor outside the main Reading Room. It contains records for items that were not considered to be of academic importance at the time of receipt (for example, novels). You cannot find these items online in iDiscover.
Specialist catalogues
There are several card catalogues and finding aids in the Library. Visit the page of the collection or department you are interested in for more information on finding items.