Dot Porter, Curator, Digital Research Services at the University of Pennsylvania Library, offers a video orientation to Penn Library’s LJS 224,  Expositio in libros Posteriorum Aristotelis, by Paolo, Veneto. This manuscript was written in Italy between 1425 and 1475, in Latin, and it is a commentary on Aristotle’s Posterior analytics, in which syllogistic reasoning is applied to scientific proof or demonstration.

You can see the full online facsimile of this work at Penn in Hand  and you can download all of the images and metadata at OPenn. You can also download a copy of this video from ScholarlyCommons, the University of Pennsylvania’s open access institutional repository.