Dot Porter, Curator, Digital Research Services at the University of Pennsylvania Library, offers a video orientation to Penn Library’s LJS 97, Eis ta harmonika Ptolemaiou hypomnēma, byPorphyry . This manuscript was written in Spain or Italy, between 1560 and 1580, in Greek, and it contains Porphyry’s commentary on about half of Ptolemy’s treatise Harmonics, focusing on harmonics and acoustics.

You can see the full online facsimile of this work in Penn in Hand and you can download all of the images metadata at OPenn.

Dot Porter, Curator, Digital Research Services at the University of Pennsylvania Library, offers a video orientation to Penn Library’s LJS 231, Statutum habelle communum. Written in Latin in Barga, Italy after 1346, this manuscript of 49 chapters includes regulations concerning the amount of tax (gabella or gabelle) and the conditions under which duty must be paid on internal and external trade in cloth of various kinds and from various sources.

See the full online facsimile of this work in Penn in Hand and you can download all of the images metadata at OPenn.