FERRARIUS DE GRADIBUS, J.M. Practica noviter correcta. (Venice, Bonetus Locatellus for Heirs of Octavianus Scotus (of Lodi), 1502, June 11). 377 lvs. Sm-fol. Old h. vellum extra, w. mottled edges. (Spine affected by wormholes, small stamps on free endpapers, lacking lvs. 225, 226, 231 and 232 (cc1-cc2 and cc7-cc8), probably due to a binder error, lacking last blank, some minor foxing/browning in places, outer margin first 8 and last 3 lvs. a bit stained).