Image from page 89 of "A treatise on painting" (1796)

Identifier: treatisepainting00leon.Title: A treatise on painting ( ...internetarchivebookimages/tags/bookidtreatisepainting00leon ) .Year: 1796 ( ...internetarchivebookimages/tags/bookyear1796 ) (1790s ( ...internetarchivebookimages/tags/bookdecade1790 ) ).Authors: Leonardo, da Vinci, 1452-1519 ( ...internetarchivebookimages/tags/bookauthorLeonardo__da_Vinci__1452_1519 ) .Subjects: Leonardo, da Vinci, 1452-1519 ( ...internetarchivebookimages/tags/booksubjectLeonardo__da_Vinci__1452_1519 ) Painting ( ...internetarchivebookimages/tags/booksubjectPainting ) Drawing ( ...internetarchivebookimages/tags/booksubjectDrawing ) Perspective ( ...internetarchivebookimages/tags/booksubjectPerspective ) Painters ( ...internetarchivebookimages/tags/booksubjectPainters ) .Publisher: London : Printed for I. and J. Taylor, at the Architectural Library ... ( ...internetarchivebookimages/tags/bookpublisherLondon___Printed_for_I__and_J__Taylor__at_the_Architectural_Library____ ) .Contributing Library: University of California Libraries ( ...internetarchivebookimages/tags/bookcontributorUniversity_of_California_Libraries ) .Digitizing Sponsor: Internet Archive ( ...internetarchivebookimages/tags/booksponsorInternet_Archive ) ...View Book Page: Book Viewer ( stream/treatisepainting00leon/treatisepainting00leon#page/n89/mode/1up ) .About This Book: Catalog Entry ( details/treatisepainting00leon ) .View All Images: All Images From Book ( ...internetarchivebookimages/tags/bookidtreatisepainting00leon ) ..Click here to view book online ( stream/treatisepainting00leon/treatisepainting00leon#page/n89/mode/1up ) to see this illustration in context in a browseable online version of this book....Text Appearing Before Image:.hefc reflexes are thrown ; always obferving thatthcfe receded colours do not appear too vividand diflind:, unlffs where there is fome parti-cular reafon for the contrary.Of refleftcd AH rcfledied colours are lefs vivid, and ap- coiours. peaj- ^vjtii lefs force, than thofe which receive their light direClly; the dired or incident lightbearing the fame proportion to the light re-flected, which the luminous bodies occaiioningthem, bear to one another in brightnefs andluftre. A reflex proceeding from a body moreobfcure than that which receives it, will beweak and almoft infenlible; on the contrary,where the ground on which it is received, isdarker than the furface whence it proceeds, itwill be bolder and more vifible: laftly, it willbe ftill more fenfible as the ground is more ob-fcure, and dimmer, as it is more bright.Of the pofiiion As much as the left fide of the nudity^ D A,of figure. is fhortened on account of the polition of thefigure, fo much the oppofite fide B C\ is length-ened J..Text Appearing After Image:.BY LEONARDO DA VINCI. 67 cned; that is, in proportion as that part of thefigure between the left flioulder D, and theMairt y/,, is diminifiled, the part on the oppo-fitefide, from B to C, is augmented ; the navel,or the middle of the body, al ways continuing inthe fame height. This diminution of parts onthe left fide of the figure, arifes from its reftingon the left foot, which by this means becomesthe center of the whole body : hence it comesto pafs, that the middle point, which is underthe throat, between the two clavicles, quits theperpendicular in which it was found when thebody was erect, and enters into another whichpafles through the left leg, and terminates inthe left foot; and the farther this line deviatesfrom the middle of the body, the farther like-•wife will the horizontal lines which traverfe it,recede from right angles; ftill declining to-wards the left fide, on which the body refts. When you underfland perfpedive and ana- Preiimmariestomy well, and have a tolerable n.