Mulerius' catalogue

Mulerius' catalogue is a shelf list, enumerating the books in the order in which they were placed in the eight bookcases. There were four shelves in each case (pluteus), two on each side. Each side of a case was indicated with a letter, from A through Q (the letter J has not been used). The descriptions contain the author's name, the title, the year of publication, and the number of volumes. The names and offices of donors as well as the date of the donation are given. Sometimes the buying price has been added.
After February 1619 and up to the eighteenth century, Mulerius and his successors used the Syllabus as their working copy and entered acquisitions and donations. These additions, however, are very incomplete as sometimes no entries were made for decades.

Most of the books described in the Syllabus were printed in Switzerland, Germany, and France, and only a few in the Netherlands. The number of recent publications is remarkably high: 60% dates from the period 1600-1619, 40% from the sixteenth century. Over four hundred volumes were stored in eight bookpresses, arranged into six disciplines:

Theologici: 80 titles in 168 volumes, 14 shelves
Important Bible editions, i.a. the Biblia Regia in eight volumes (Plantin, Antwerpen 1569-1573); concordances of the Bible; a Hebrew dictionary; works by protestant theologians such as Luther, Melanchthon, Zwingli, Calvin, and Beza; Greek and Roman Fathers.

Historici: 27 titles in 41 volumes, 2 shelves
Works by Flavius Josephus, Diodorus Siculus, Herodotus, Thucydides, Xenophon, Eusebius, Polybius, Tacitus, and collections of historical texts in Greek, Latin, and German.

Juridici: 66 titles in 118 volumes, 10 shelves
Editions of the Corpus Iuris Civilis, the Codex, the works of Bartolus, and ancient and contemporary lawyers.

Medici: 17 titles in 28 volumes, 2 shelves
Including works of Hippocrates, Galen, Fuchs, Fernel, and Heurnius.

Philosophi et Literatores: 17 titles in 29 volumes, 2 shelves
Editions of Plato, Seneca, Plotinus, and others.

Mathematici et Geographici: 12 titles in 17 volumes, 2 shelves
Works by Strabo, Ptolomy, Archimedes, Brahe, Kepler, and others.