Rough let it swell and boldly meet the sight, Mark'd with peculiar strength of shade and light; There blend each earthly tint of heaviest sort, 415 At once to give consistence and support, While the bright wave, soft cloud, or azure sky, * Permit not two conspicuous lights to shine 420 In translucendi spatio ut super aëra, nubes, Limpida stagna undarum, et inania cætera debent Asperiora illis prope circumstantibus esse; Ut distincta magis firmo cum lumine et umbra, 305 Sed contra, procul abscedant prelucida densis, 310 Corporibus leviora ; uti nubes, aër, et undæ. + Non poterunt diversa locis duo lumina eâdem In tabula paria admitti, aut æqualia pingi : * XXXIV. There must not be two equal Lights in the Picture. + XXXIV. Non duo ex cœlo Lumina in tabulam æqualia. There, where the noblest figures are display'd,' Thence gild the distant parts, and lessening fade; As fade the beams which Phoebus from the East 425 Flings vivid forth to light the distant West, grace, In Parian marble or Corinthian brass, 430 315 Majus at in mediam lumen cadet usque tabellam 435 So let thy pencil fling its beams around, Round the full lights the wand'ring shadows steal; 440 Then only justly spread, when to the sight clear May bear an object back, or bring it near; 445 Corpora sed circum umbra cavis latitabit ober rans; 325 Atque ita quæretur lux opportuna figuris, remotum: 330 * XXXV. Of White and + XXXV. Album et Nigrum Black, Aided by black it to the front aspires, That aid withdrawn it distantly retires; 450 * Whate'er we spy through colour'd light or air, A stain congenial on their surface bear, While neighb'ring forms by joint reflection give, And mutual take the dyes that they receive. + But where on both alike one equal light Diffusive spreads, the blending tints unite. For breaking colours thus (the ancient phrase By Artists used) fair Venice claims our praise: 455 Cum nigro antevenit propiùs; fugit absq. remotum; Purum autem nigrum antrorsum venit usque propinquum. Lux fucata suo tingit miscetque colore Corpora, sicque suo, per quem lux funditur, aër. Corpora juncta simul, circumfusosque colores 335 Excipiunt, propriumque aliis radiosa reflectunt. § Pluribus in solidis liquidâ sub luce propinquis, Participes, mixtosque simul decet esse colores. Hanc norman Veneti pictores ritè sequuti, * XXXVI. The Reflection of Colours. + XXXVII. The Union of Colours. + XXXVI. Colorum Reflectio. § XXXVII. Unio Colorum. She, cautious to transgress so sage a rule, 465 Confin'd to soberest tints her learned school; 460 470 (Quæ fuit antiquis corruptio dicta colorum) 345 |