Notre Dame's collection of microfilms of the medieval manuscripts in the Biblioteca Ambrosiana includes most of the Arabic volumes held in the library. The indispensable reference for this collections is Catalogue of the Arabic manuscripts in the Biblioteca Ambrosiana by Oscar Löfgren and Renato Traini (Vicenza : N. Pozza, 1975- ). Notre Dame's collection includes microfilms of all of the Arabic manuscripts mentioned in the Traini catalogue except

Antico fondo: & 35 sup, S.P. II 247
All of the medio fondo (X sup)
Nuovo fondo (manoscritti arabi): A 60, A 124, C 41, C 136, D 263, D 331, D 389, D 390, D 404, D 405, D 516, D 527, E 92, E 328

The Biblioteca Ambrosiana has a substantial collection of Greek manuscripts and most of these have been microfilmed for Notre Dame. This collection has partly been catalogued in Martini and Bassi, Catalogus codicum graecorum Bibliothecae Ambrosianae (Hildesheim: Georg Olms Verlag, 1978 repr). Notre Dame holds microfilms of all of the manuscripts described in this catalogue except

D 119 sup, E 147 sup, N 346 sup

Most of the Hebrew manuscripts in the Ambrosiana are found in Notre Dame's microfilm collection as well. The two catalogues for this collection are Codices hebraici Bybliothecae ambrosianae (Florentiae : apvd Leonem S. Olschki bibliopolam, 1933) and Hebraica Ambrosiana by Aldo Luzzatto and Luisa Mortara Ottolenghi (Milano: Il polifilo, 1972). Notre Dame holds microfilms of all of the manuscripts described in these two catalogues except

C 144 sup, Q 139 sup, X 115bis sup, X 245 sup, X 246 sup, S.P. II 252