1. Dialogus rationis et conscientiae de frequenti usu Communionis Creator: Mateusz, z Krakowa, Cardinal, approximately 1330-1410, author Published / Created: [1460] Call Number: Zi 147 Image Count: 59 Resource Type: text Alternative Title: Tractatus racionis et consciencie de sumpc[i]one pabuli salutiferi corp[or]is d[omi]ni nostri ij[es]u [christ]i Description: Final page blank. Publisher: Printer of the Catholicon (Johann Gutenberg?) Found in: Beinecke Rare Book and Manuscript Library > Dialogus rationis et conscientiae de frequenti usu Communionis