La sfera.
Dati, Gregorio, 1363-1436. La sfera. [Aug. 7, 1484] (Card 2)
vigesima tertia pulsata. Attributed also to Leonardo Dati. Bound in modern vellum,
1. Navigation--Early works to 1800. [2. Manu- scripts in this library--Italian.] I. Dati, Le- onardo, 1360-1425, supposed author. II. Title.