Light and shade with chapters on charcoal, pencil, and brush drawing : a manual for teachers and students (1901)
Cross, Anson K. (Anson Kent), 1862-1944, Ginn and Company, publisher, Athenaeum Press (Cambridge, Mass.), printer · Boston, U.S.A., and London : Ginn & Company, Publishers : The Athenaeum Press · leaf 15
— We will studythe effects of sunlight by means of the sphere, which is well adaptedto present all the light and shade effects visible in nature. Sunlight effects. —The rays of sunlight are straight, and divergefrom the sun, but in the study of shadows are generally consideredas parallel. One half… … Fig. I. the light; that which receives no direct rays appears dark in contrastwith the light, and is called the shadow. The light and theshadoware separated by a great circle upon the sphere which is perpen-dicular to the rays of light. The points in the circumference ofthis circle are the points…
Shades and shadows in art · Drawing · Art · Chiaroscuro · Light in art
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