Tratado das Cores
 Que consta de tres partes: analytica, synthetica, hermeneutica

by Diogo de Carvalho e Sampaio

"Tratado das Cores" by Diogo de Carvalho e Sampaio is a scientific publication written in the late 18th century. The text explores the nature of colors, categorizing them into primary and secondary qualities, while detailing principles of color mixing and the effects of light on perception. The audience likely includes artists and enthusiasts of natural sciences looking to understand color theory in greater depth. The opening of the work sets the stage for a comprehensive exploration of color, introducing the author’s intent to share his observations and hypotheses about how colors interact within the natural world. The text begins with a discussion on the distinctions between primary and secondary qualities of bodies, emphasizing that colors arise through various combinations of simple elements. The author references notable philosophical perspectives, including those of Aristotle, Cartesian thinkers, and Isaac Newton, aiming to establish a framework within which he examines the foundational elements of color and its manifestation in nature and art.