Tractatvs, in quo examinantur, & soluuntur iuxta varietatem sententiarum probabilium omnia, quae spectant ad cometas : in quo agitur praesertim de eo, qui caepit obseruari hìc circa medium mensis decembris anni 1664
A 1670 Latin treatise printed in Rome by the successor of Mascardi, written by Giovan Domenico Roccamorra on comets and the comet seen in December 1664, aimed at scholars and learned readers. The four pictures are small printer's ornaments: a laurel wreath with ribbon ends, two flowering garlands framing a grotesque face with hanging tassels, and a square block of foliage enclosing a large letter Q, which a designer could adapt as decorative borders and initial letters.
