Pierre Bouguer's Optical Treatise on The Gradation of Light

In 1760 the first edition of the Traite d’optique sur la gradation de la lumiere of Pierre Bouguer was published posthumously. Bouguer (1698-1758), French mathematician, professor of hydrography, and author of works on the theory of navigation, can also be considered the inventor of photometry, and the Traite was his definitive word on the subject. It has become one of the classic treatises of sci...