1 have been discovered in a palimpsest MS. in the Bibliotheque Nationale at Paris (Latin coll., No.
In that year, however, Angelo Mai discovered in the Ambrosian library at Milan a palimpsest manuscript (and, later, some additional sheets of it in the Vatican), on which had been originally written some of Fronto's letters to his royal pupils and their replies.
Naber (1867), with an account of the palimpsest; see also G.
55-64) from a palimpsest of the 6th century.
The episcopal palace contains the ancient and valuable chapter library, of about 12,000 volumes and over 500 MSS., among them the palimpsest of the Institutiones of Gaius which Niebuhr discovered.