Predominates To The Eye Constitute The Negative Or Neutral Colours
: ON COLOURS AND PIGMENTS GENERALLY.
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Peculiar Red Mineral Orange
... Pickle Green &c
The general characteristics of these greens are brightness of colour, well suited to the purposes of house-painting, but seldom adapted to the modesty of nature in fine art; considerable permanence, except when exposed to the action of damp and impu... Picture--that Picture Which May Meet With Foul Exhalations But Must
be exposed to light and air. And he too often thinks as little of the effects of an impure atmosphere or injudicious admixture, as the chemist considers the action of air and light. ... Pigment Says The Chemical News Supplies A Desideratum Hitherto In
vain sought for by artists. It is the nearest approach to a perfect yellow in existence, and more closely resembles the purity of the prismatic spectrum than any other artificial colour. It is transparent, has great brilliancy and richness, both pure ... Pigment The [greek: Kinnabari] Of The Greeks And The Minium--a Term
now confined to red lead--of older writers. Pliny states that it was so esteemed by the Romans, as to have its price fixed by express law of state. Among other places, the natural product is met with in California, Spain, and Peru; and in China there ... Pigments And Bases Are Subject To Deoxidation Or To A Loss Of Oxygen
in which case the colour is apt to deepen. Pigments generally are more affected by oxidation and fading in a water vehicle, and by deoxidation and darkening in one of oil. A principal test of permanency in pigments is the impunity with which they b... Pigments Of Whose Thorough Durability There Is No Doubt Comes The
... Pitch And [greek: Kallos] Ornament The Blue Is Named Pittacal
The mode of separating pittacal has not been clearly described. Dumas states, that when precipitated in a flocculent state from its solutions, or obtained by evaporation, it closely resembles indigo, and, like it, acquires a coppery hue when rubbed.... Plumbago Or Graphite Contains In Spite Of Its Name No Lead Being
simply a species of carbon or charcoal. In most specimens iron is present, varying in quantity from a mere trace up to five per cent, together with silica and alumina. Sometimes manganese and titanic acid are likewise found. It is curious that carbon ... Poppy &c: In Gold Colour &c It Leans Towards Yellow Combined
... Pre-eminently A Warm Colour Being The Equal Contrast Of Or Antagonist
... Predominates To The Eye Constitute The Negative Or Neutral Colours
... Primary Blue Yellow Furnishes All The Variety Of The Secondary
... Primary Colours Are Three Only Yellow Red And Blue They Are
such as yield others by being compounded, but are not themselves capable of being produced by composition of other colours. By way of distinction, they are occasionally designated "entire" colours. ... Primary Yellow The Secondary Orange Or The Tertiary Citrine With
... Principle Under The Name Of Wongshy And Consisting Of The
seed-capsule of a species of gentian. The aqueous extract, freed from the pectin which it contains, yields with baryta- and lime-water yellow precipitates, from which acids separate the colouring matter of a vermilion hue. When thus prepared it is ins... Produced By A Thin Wash Of Black Over White The Neutral Grey Differs
... Proportions Of Thirteen Purple To Three Yellow Measured In Surface
or intensity. Being nearest to the neutral white in the natural scale of colours, yellow accords with it in conjunction; while, of all colours, except white, it contrasts black most powerfully. Yellow is discordant when standing alone with orange, uns... Purple Being A Secondary Colour Composed Of Blue And Red It
follows of course that any blue and red pigments, which are not chemically at variance, may be employed in producing mixed purples of any required hue, either by compounding or grinding them together ready for use, or by combining them in the various ... Quoque
TTITLE PRIMARY BLUE ... Recommended For Painting If Not Too Thinly Applied
... Red And Blue In The Proportions Of Five Of The Former To Eight Of
the latter; proportions which constitute a perfect purple, or one of such a hue as will neutralize and best contrast a perfect yellow, in the ratio of thirteen to three, either of surface or intensity. When mixed ...