Dictionary.net

• The first of the three examinations for the B.A. degree at Oxford, familiarly called smalls.

1899 - The american dictionary of the english language.
By Daniel Lyons

• First of three examinations for Oxford B. A. degree (also smalls colloq.; cf. moderations, greats, final schools). [Latin]

1919 - The concise Oxford dictionary of current English
By Sir Augustus Henry