Photometry.- Bouger [(Pierre)] Essai d'Optique sur la Gradation de la Lumiere, first edition, Paris, Claude Jombert, 1729.

£300 · At auction with Forum Auctions

First edition

Photometry.- Bouger [(Pierre)] Essai d'Optique sur la Gradation de la Lumiere, first edition, 3 engraved folding plates, slight abrasion to plate 2, short tear touching plate 3 platemark, very occasional light spoting or surface markings, contemporary mottled calf, gilt spine with red morocco label, spine ends chipped, splitting to joints, light rubbing to extremities, 8vo, Paris, Claude Jombert, 1729. *** The book which "clearly establishes Bouger as the discoverer of the first practical way of measuring light, as well as nearly all the usual photometric theory." (Middleton) The Essai... is rarer than the extended version of the work which was published posthumously by La Caille under the title Traité d'Optique.

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