![CAVALIERI, Bonaventura (1598-1647). Directorium generale uranometricum in quo trigonometriae logarithmicae fundamenta, ac regulae demonstrantur [With:] Tabula trigonom.ca logarithmica. Bologna: N. Tebaldini, 1632.](https://www.christies.com/img/LotImages/2010/CKS/2010_CKS_07854_0243_000(cavalieri_bonaventura_directorium_generale_uranometricum_in_quo_trigon043849).jpg?w=1)
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CAVALIERI, Bonaventura (1598-1647). Directorium generale uranometricum in quo trigonometriae logarithmicae fundamenta, ac regulae demonstrantur [With:] Tabula trigonom.ca logarithmica. Bologna: N. Tebaldini, 1632.
2 parts in one volume, 4° (225 x 155mm). Cancel(?) title, large letterpress table at end ('Tabella posterior') printed on both sides of a folding sheet, woodcuts in text. (Marginal tears to S3 and Dd2 in second part just into text but without loss, occasional light spotting, a few quires heavily browned.) Contemporary vellum, early manuscript to spine (lacking ties, diagonal split at spine without loss, a little soiled).
FIRST EDITION OF THE FIRST PUBLISHED WORK by Cavalieri, which introduced the use of logarithms to Italy. It also contains valuable contributions to the study of spherical triangles. Cavalieri was a student of Galileo's protégé Benedetto Castelli. Castelli introduced Cavalieri to Galileo, and they exchanged a considerable body of correspondence. Galileo was impressed by Cavalieri, and recommended him for a lectureship at Bologna, commenting that 'few, if any, since Archimedes, have delved as far and as deep into the science of geometry' (DSB III 149). Carli-Favaro 28 (131); Cinti 187 (91); Honeyman II 644; Riccardi I 322.
2 parts in one volume, 4° (225 x 155mm). Cancel(?) title, large letterpress table at end ('Tabella posterior') printed on both sides of a folding sheet, woodcuts in text. (Marginal tears to S3 and Dd2 in second part just into text but without loss, occasional light spotting, a few quires heavily browned.) Contemporary vellum, early manuscript to spine (lacking ties, diagonal split at spine without loss, a little soiled).
FIRST EDITION OF THE FIRST PUBLISHED WORK by Cavalieri, which introduced the use of logarithms to Italy. It also contains valuable contributions to the study of spherical triangles. Cavalieri was a student of Galileo's protégé Benedetto Castelli. Castelli introduced Cavalieri to Galileo, and they exchanged a considerable body of correspondence. Galileo was impressed by Cavalieri, and recommended him for a lectureship at Bologna, commenting that 'few, if any, since Archimedes, have delved as far and as deep into the science of geometry' (DSB III 149). Carli-Favaro 28 (131); Cinti 187 (91); Honeyman II 644; Riccardi I 322.
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