Essays on the theory and practice of painting. Translation [and preface] by N. Kochetov. M. t-in a short print by A.A. Levenson 1905. VIII, 157 p. Hardcover. Normal Format. Wilhelm Friedrich Ostwald (1853-1932) was a Latvian, Russian and German physico-chemist and idealist philosopher who came from the Ostzei Germans. He was a Nobel Prize winner in chemistry in 1909. He was one of the largest organizers of science of his time. Ostwald is widely known for his work as an organizer of science. In his laboratory of physical chemistry at the University of Leipzig, students and chemical scientists from different countries studied a new science - physical chemistry, many of them later received world recognition. Among them are Arrenius, Nernst, Ramsay, Haber. The book describes the physical and chemical side of painting, the artist and his technique, drawing and related processes. Description, properties and theory of various colors: ochre, iron oxides, ultramarine, chromium oxide, cobalt paints, barite yellow, Berlin azure, indigo, marmouse, cinnabar, etc. The thinness of the colorful layer and the difficulties and advantages caused by it. The action of bile. The value of mixing cutting whites. Secret means in painting and alchemy. Tempera and different combinations with it.