![TORRICELLI, Evangelista (1608-1647). [Opera Geometrica]. De sphaera et solidis sphaeralibus libri duo in quibus Archimedis doctrina de sphaera et cylindro denuo componitur, latiùs promouetur. [De motu gravium naturaliter descendentium et proiectorum libri duo – De dimensione parabola solidique hyperbolici problemata duo]. Florence: Amadoro Massa and Lorenzo de Landis, 1644.](https://www.christies.com/img/LotImages/2017/CKS/2017_CKS_14298_0374_001(torricelli_evangelista_opera_geometrica_de_sphaera_et_solidis_sphaeral032809).jpg?w=1)
![TORRICELLI, Evangelista (1608-1647). [Opera Geometrica]. De sphaera et solidis sphaeralibus libri duo in quibus Archimedis doctrina de sphaera et cylindro denuo componitur, latiùs promouetur. [De motu gravium naturaliter descendentium et proiectorum libri duo – De dimensione parabola solidique hyperbolici problemata duo]. Florence: Amadoro Massa and Lorenzo de Landis, 1644.](https://www.christies.com/img/LotImages/2017/CKS/2017_CKS_14298_0374_002(torricelli_evangelista_opera_geometrica_de_sphaera_et_solidis_sphaeral032822).jpg?w=1)
![TORRICELLI, Evangelista (1608-1647). [Opera Geometrica]. De sphaera et solidis sphaeralibus libri duo in quibus Archimedis doctrina de sphaera et cylindro denuo componitur, latiùs promouetur. [De motu gravium naturaliter descendentium et proiectorum libri duo – De dimensione parabola solidique hyperbolici problemata duo]. Florence: Amadoro Massa and Lorenzo de Landis, 1644.](https://www.christies.com/img/LotImages/2017/CKS/2017_CKS_14298_0374_000(torricelli_evangelista_opera_geometrica_de_sphaera_et_solidis_sphaeral051806).jpg?w=1)
Details
TORRICELLI, Evangelista (1608-1647). [Opera Geometrica]. De sphaera et solidis sphaeralibus libri duo in quibus Archimedis doctrina de sphaera et cylindro denuo componitur, latiùs promouetur. [De motu gravium naturaliter descendentium et proiectorum libri duo – De dimensione parabola solidique hyperbolici problemata duo]. Florence: Amadoro Massa and Lorenzo de Landis, 1644.
3 parts, 4º (220 x 159mm). One full-page engraving on Gg2r, woodcut diagrams and ornaments. (Worming at bottom margin throughout, browning to title and some other leaves, without blank A6, O2v soiled at bottom margin.) Contemporary vellum, manuscript title on spine, uncut (ties lacking); modern full morocco slipcase.
FIRST EDITION of the only book by Torricelli published in his lifetime. The first part is particularly important for his carefully explained use of Cavalieri’s geometry of indivisibles in the solution of problems connected with solids. As he ‘acquired increasing familiarity with the method of indivisibles, he reached the point of surpassing the master – as Cavalieri himself said.’ In the second part, De motu gravium, ‘he continued the study of the parabolic motion of projectiles begun by Galileo, recognising "the inverse character of the operations of integration and differentiation which form the fundamental theorem of the calculus"’ (DSB XIII, pp.435-36). BL/STC 17th-century Italian Books II, p.914; Carli and Favaro 204; Cinti 114; Honeyman 2991; Norman 2086; Riccardi I(ii) 542: ‘assai rara e tanto interessa la storia della scienza’; cf. PMM 145.
3 parts, 4º (220 x 159mm). One full-page engraving on Gg2r, woodcut diagrams and ornaments. (Worming at bottom margin throughout, browning to title and some other leaves, without blank A6, O2v soiled at bottom margin.) Contemporary vellum, manuscript title on spine, uncut (ties lacking); modern full morocco slipcase.
FIRST EDITION of the only book by Torricelli published in his lifetime. The first part is particularly important for his carefully explained use of Cavalieri’s geometry of indivisibles in the solution of problems connected with solids. As he ‘acquired increasing familiarity with the method of indivisibles, he reached the point of surpassing the master – as Cavalieri himself said.’ In the second part, De motu gravium, ‘he continued the study of the parabolic motion of projectiles begun by Galileo, recognising "the inverse character of the operations of integration and differentiation which form the fundamental theorem of the calculus"’ (DSB XIII, pp.435-36). BL/STC 17th-century Italian Books II, p.914; Carli and Favaro 204; Cinti 114; Honeyman 2991; Norman 2086; Riccardi I(ii) 542: ‘assai rara e tanto interessa la storia della scienza’; cf. PMM 145.
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