Essai d'une Théorie sur la Structure des Crystaux, appliquée a plusieurs Genres de Substances crystallisées. Rene-Just HAÜY.
Essai d'une Théorie sur la Structure des Crystaux, appliquée a plusieurs Genres de Substances crystallisées...

The Foundation of the Mathematical Theory of

Crystal Structure

Essai d'une Théorie sur la Structure des Crystaux, appliquée a plusieurs Genres de Substances crystallisées...

Eight folding engraved plates. 3 p.l., 236 pp. 8vo, 19th-cent. pink half-calf (first few leaves a little foxed), spine gilt, black morocco lettering piece on spine. Paris: Gogué & Née, 1784.

First edition of the book which “laid the foundation of the mathematical theory of crystal structure.”–D.S.B., VI, p. 178. It was due to this work that Haüy was able to properly classify minerals. Haüy held that the characteristic form of the constituent molecule of a compound is due to the forms, the definite proportions, and the definite arrangement of the constituent elementary particles. That is, before Proust, Haüy proposed a priori the chemical law of fixed proportions. These concepts enabled Haüy to unite in one species minerals hitherto considered different, such as beryl and emerald, and to divide groups that had been considered varieties of the same species, such as zeolites.

Very good copy. Half-title lacking. Signature of J. Robison, 1787, in upper corner of title. This was John Robison (1739–1805), natural philosopher, inventor, and collaborator with James Watt and Joseph Black, whom he succeeded as lecturer on chemistry at Glasgow.

❧ Dibner, Heralds of Science, 92. En Français dans le Texte 176. Horblit 47. Sparrow, Milestones of Science, 94.

Price: $7,500.00

Item ID: 3248