97182-02
Nouvelles recherches sur les lois des proportions chimiques, sur les poids atomiques et leurs rapports mutuels.
Brüssel, Hayez, 1865. - (28 x 21,5 cm). (2) 311 S. Mit 23 Abbildungen und 1 gefalteten lithographierten Tafel. Moderner Halblederband.
Erste Ausgabe mit handschriftlicher Widmung des Verfassers. - Stas (1813-1891), Professor für Chemie an der Militärakademie in Brüssel, bewies durch seine Atomgewichtsbestimmungen mehrerer Elemente mit einer über 3 Jahrzehnte unübertroffenen Genauigkeit die Unrichtigkeit der Proutschen Hypothese. "In 1860 he published his main work, 'Recherches...' a study devoted to a number of elements... that were considered by Dumas to support Prout's hypothesis. In this work Stas demonstrated that the values of the atomic weights he had determined were neither multiples of unity, nor of one half, as Marignac believed, nor of one quarter, as Dumas maintained... In three papers collectively entitled 'Nouvelles recherches...' Stas presented the results of an extensive series of experiments devoted to the new dimension. By painstaking and accurate measurements he established that atomic weights were incommensurable, thereby disproving the facile conclusion that discrepancies with whole-number values were due merely to experimental errors" (DSB). - Sauber, breitrandig und wohlerhalten. - DSB 12, 619; Partington IV, 877
Nouvelles recherches sur les lois des proportions chimiques, sur les poids atomiques et leurs rapports mutuels.
Brüssel, Hayez, 1865. - (28 x 21,5 cm). (2) 311 S. Mit 23 Abbildungen und 1 gefalteten lithographierten Tafel. Moderner Halblederband.
Erste Ausgabe mit handschriftlicher Widmung des Verfassers. - Stas (1813-1891), Professor für Chemie an der Militärakademie in Brüssel, bewies durch seine Atomgewichtsbestimmungen mehrerer Elemente mit einer über 3 Jahrzehnte unübertroffenen Genauigkeit die Unrichtigkeit der Proutschen Hypothese. "In 1860 he published his main work, 'Recherches...' a study devoted to a number of elements... that were considered by Dumas to support Prout's hypothesis. In this work Stas demonstrated that the values of the atomic weights he had determined were neither multiples of unity, nor of one half, as Marignac believed, nor of one quarter, as Dumas maintained... In three papers collectively entitled 'Nouvelles recherches...' Stas presented the results of an extensive series of experiments devoted to the new dimension. By painstaking and accurate measurements he established that atomic weights were incommensurable, thereby disproving the facile conclusion that discrepancies with whole-number values were due merely to experimental errors" (DSB). - Sauber, breitrandig und wohlerhalten. - DSB 12, 619; Partington IV, 877
450 €