A condensed encyclopedia of what was then understood by natural science. The work was probably written about the middle of the 13th century. It was one of the most widely read scientific works of the Middle Ages. Caxton is said to have learned to print from this book. ISTC No. ib00131000. Digital facsimile from Heinrich Heine Universität Dusseldorf at this link.

This English translation of Bartholomaeus Anglicus was made by John of Trevisa in 1398. Bibliographically it is of interest as being one of the earliest books printed in London, one of the finest of the 15th century, and the first book printed on paper made in England. See also On the properties of things. John Trevisa’s translation of Bartholomaeus Anglicus’ De proprietatibus rerum. A critical text edited by M. C. Seymour, 2 vols., London, 1975.  ISTC No. ib00143000.

See also M. C. Seymour et alii, Bartholomaeus Anglicus and his encyclopedia (Aldershot, England: Variorum, 1992).