Scientific diagrams could and did appear in more unexpected places. This essay discusses such an example: the diagrams that the thirteenth- to fourteenth-century scholar George-Gregory Chioniades added to a manuscript of John of Damascus’s Fountain of Knowledge as part of his commentary on the text. I argue that the diagrams were a very important,…[Read more]

The famous middle Byzantine alchemical manuscript Marcianus graecus 299 contains annotations from the late Byzantine period, most prominently in its opening quire. This article examines a text on the very first page of the manuscript, a text written in a late Byzantine Greek script, but in a language other than Greek. A number of words in this…[Read more]

This article examines the dedicatory epigram of the earliest and most important witness to the Greek alchemical corpus, the tenth-century manuscript donated by Cardinal Bessarion to the Republic of Venice, Biblioteca Nazionale Marciana MS gr. 299, as a window onto the cultural coordinates of the manuscript’s middle Byzantine readers. Scrutiny of…[Read more]