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Considerations sur les difficultes qu'on rencontre dans l'execution des verres objectifs de toute confusion. (Considerations on the difficulties that one encounters during the manufacture of objective lenses)
(Berlin, Haude et Spener, 1769). 4to. No wrappers as issued in ""Memoires de l'Academie Royale des Sciences et Belles Lettres"". tome XVIII, 1762. With halftitle ""Classe de Mathematique"" (2) pp. + pp. 117-142. Clean and fine.
An original paper ( first printing) by Euler dealing with the mathematics of problems in the manufacturing of lenses.Enestroem: E 376.
"EULER, LEONHARD. - THE OPTICAL THEORY OF COMPOUND LENSES FOR TELESCOPES AND MICROSCOPES.
Reference : 45126
(1759)
Régles générales pour la Construction des telescopes et de Microscopes, de quelque nombre de Verres qu'ils soient composés. (Rules for the construction of telescopes and microscopes).
(Berlin, Haude et Spener, 1759). 4to. No wrappers, as issued in ""Mémoires de l'Academie Royale des Sciences et Belles Lettres"", Année 1757, tome XIII, pp. a. 1 engraved plate.
First printing of an importent paper in which Euler shows how to manufacture catoptrical telescopes and microscopes in accordance with general rules and founded on his own experiments. - The calculation concerning light ray aberrations, brought about due to the sphericty of the glass, is a masterpiece of analysis of the highest order and he also incorporates the mathematical theory of achromatic combination of lenses, which was first realized by Dollond in the same year, 1757.
