Epact offers catalog of medieval and renaissance scientific instruments

A digital catalog of scientific instruments from the Museum of the History of Science, Oxford, the Istituto e Museo di Storia della Scienza, Florence, the British Museum, London, and the Museum Boerhaave, Leiden is now available to view online. The instruments are described and include photographs.

From the website:

"Epact consists of 520 catalogue entries and a variety of supporting material. All European instruments from the four museums by makers who were active before 1600 have been entered in the catalogue. They include astrolabes, armillary spheres, sundials, quadrants, nocturnals, compendia, surveying instruments, and so on. Examples range from ordinary instruments for everyday use to more extravagant and often lavish pieces destined for the cabinets of princes."