Leonardo, da Vinci, 1452-1519 · London : Printed for I. and J. Taylor, at the Architectural Library ... · leaf 208
en-ters the curvature of the arch, muft have itsbreadths and thricknelTes further diminifhed,in the fame manner as if it were ftrait; and toproceed the more furcly, it may be convenientto mark out this diminution on fome even plane,where you may lay your figure, taken off fromthe feigned wall A^ A\… … rr. BY LEONARDO DA VINCI. I53 Obferve, that where your fliadows termi- Remarks reUt-nate, there be always an appearance of a balf ^^I^jj^jjj*^fliadow, that is, a mixture of light and fha-dow ; and that the fhadow be more perfe(ftlymingled with the light, as it is further renjov-cd from the dark…
