He was the author of Institutiones Physiologicae (1787), and of a Handbuck der vergleichenden Anatomie (1804), both of which were very popular and went through many editions, but he is best known for his work in connexion with anthropology, of which science he has been justly called the founder.
Giobbio, I Concordati (Monza, 1900); idem, Lezioni di diplomazia ecclesiastica (Rome, 1899-1903); Cardinal Cavagnis, Institutiones juris publici ecclesiastici (Rome, 1906).
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.
Murner also wrote the humorous Chartiludium logicae (1507) and the Ludus studentum freiburgensium (151 I), besides a translation of Justinian's Institutiones (1519).
The most celebrated handbook, however, is the Institutiones of Gaius, who lived under Antonius Pius - a model of what such treatises should be.
In 1768 he had published Institutiones metallurgicae, intended to give a scientific form to chemistry by digesting facts established by experiment into a connected series of propositions.
The Institutiones grammaticae is a systematic exposition of Latin grammar, dedicated to Julian, consul and patrician, whom some have identified with the author of a well-known epitome of Justinian's Novellae, but the lawyer appears to be somewhat later than Priscian.
The municipal library, with 300,000 volumes, boasts among its rarer treasures a Gutenberg Bible printed at Mainz between 1450 and 1455, another on parchment dated 1462, the Institutiones Justiniani (Mainz, 1468), the Theuerdank, with woodcuts by Hans Schaufelein, and numerous valuable autographs.