Porter, Dot2023-05-232023-05-232015-04-042015-04-25https://repository.upenn.edu/handle/20.500.14332/46433http://hdl.library.upenn.edu/1017/d/medren/5006526Astronomy--Early works to 1800Comets--Early works to 1800Physics--Early works to 1800 Manuscripts Italian--17th centuryManuscripts EuropeanFacsimile of LJS 200, Giovanni Alfonso Borelli letters to Dionigi GuerriniBook