Books are shelved in Stackroom 1, located below the Library Hall.
It holds the continuation of the LC classified books, older books arrangd by the Union Theological Seminary scheme and pamphlets and outsize volumes.
The older classification uses more spaces and capital letters than LC, e.g. BS 28 Bis. Some older shelfmarks being with an 's', e.g. sBS 28 BIS. This means 'stack'. Notice that the text on the spine labels is printed in black.