4 résultats
187445923Leipzig J.A. Barth 1874. Without wrappers. In "Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff" Jubelband. With titlepage to "Jubelband". Titlepage with a stamp. Pp. 557-584 <br/><br/><em>First appearance of a fundamental paper in modern optics in which Helmholtz published his discovery of the resolution limit of the microscope. He found that the limit for the difference of magnitude that we are able to distinguish plainly is in general found equal to half the wave-lenght of theparticular light employed. A further increase in optical power beyond that of the best modern instruments does not therefore seem possible. </em> unknown
187445923Leipzig, J.A. Barth, 1874. Without wrappers. In ""Annalen der Physik und Chemie. Hrsg. von J.C. Poggendorff"", Jubelband. With titlepage to ""Jubelband"". Titlepage with a stamp. Pp. 557-584
185927191Paris, Desobry, Magdeleine et Cie, 1859, in-12, de (4), IV, 328 pages et 12 planches, demi-percaline aubergine de l'époque, Unique édition, assez rare. L'auteur applique de façon systématique la microscopie moderne du milieu du XIXe siècle et ses nouveaux accessoires (concentrateur, goniomètre, polarisation, chambre claire, etc.) à l'étude de l'homme et des diverses branches de la médecine : physiologie, pathologie, médecine légale, hygiène et matière médicale. Les planches représentent les différentes parties d'un microscope et ses accessoires et des observations microscopiques. Bon exemplaire. de (4), IV, 328 pages et 12
182148349Paris Crochard 1821. No wrappers. In: "Annales de Chimie et de Physique Par MM. Gay-Lussac et Arago." tome 17 Cahier 4. With titlepage to tome 17. Pp. 337-414 a. 1 engraved folded plate. Entire issue offered. Amici's paper: pp. 412-434 a. 1 folded engraved plate. Clean and fine printed on good paper. <br/><br/><em>First French edition of Amici's famous paper "Dei microscopii catadiottrici" first published in Italian in 1818 in which he describes his invention of a new type of catadioptric microscope the first with successfull achromatic lenses. The invention had a great impact on biology - Amici himself was able to see the streeming movements of protoplasm in the Alga Chara and in examining the hairs on the stigma of Purslane he saw a tube given off by the pollen grain and the granular content os prerform streaming movementys like those in Chara an importent feature in plant fertilization. </em> unknown