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Pseudo-Bacon Roger (1214?-1294) (& others)

  • Pseudo-Bacon, Roger 1214?-1294
Late 16th Century
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About this work


Thesaurus spirituum (Incomplete). Preceded by an incomplete 'Ars notoria' in English, and followed by extracts from works on magical experiments, ceremonial magic, etc.: in Latin and English. Illustrated by numerous very rough pen-drawings of magical figures, and diagrams, sigils, etc. Contents: 1. [Pseudo-SOLOMON]. Ars notoria. Incomplete at beginning and end. (ll. 1-35). 2. [Pseudo-SOLOMON.] Vincula. (ll. 36-38.). 3. Pseudo-BACON (R.). Thesaurus spirituum. (ll. 39v-98.) The beginning is wanting: the colophon on 1.98 reads: 'Explicit theasurus spirituum utilis et fidelssime editus per magistrum Bakon et quendam Turcum eius socium predilectum'. 4. Miscellaneous conjurations, etc.: in Latin. (ll. 98v-101v.). 5. Flores extracti de libello qui nuncupatur 'Offitium spirituum', with other conjurations, etc.: mainly in Latin, a few in English. (ll. 101v-111).


Late 16th Century

Physical description

1 volume 111 ll. 4to. 20 x 15 cm. Early 19th cent. half-calf binding. Margins cropped. The first six leaves are cut down and mounted, the last leaf cut down and repaired in the margins. Leaves 36-38 are bound in the wrong order.

Acquisition note

Purchased at Sotheby's (Hauser Sale), 18 / 4 / 1934, Lot 528.

Ownership note

On the verso of the last fly-leaf at the beginning 'Fred[erick] Hockley. 10 Feb. 1829', Inside the upper cover and defaced, is the Library-stamp of the 'British Section of the Theosophical Society. London'. From the Library of Lionel Hauser of Paris, with his press-mark label 'L. H. 20'.

Finding aids

Database description transcribed from S.A.J. Moorat, Catalogue of Western Manuscripts on Medicine and Science in the Wellcome Historical Medical Library (London: Wellcome Institute for the History of Medicine, 1962-1973).


  • Latin
  • English

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