Light Does Upon Opacity Or Reflecting Power Opacity Is Therefore
: ON COLOURS AND PIGMENTS GENERALLY.the antagonist of transparency, and qualifies pigments to cover in
dead-colouring, or solid painting, as well as to combine with
transparent colours in forming tints; and hence it is that
semi-transparent pigments are suited in a mean degree both for dead
colouring and for finishing. As excellencies, therefore, transparency
and opacity are relative only--the first being as indispensable to shade
in all its gradations,
transparent and opaque colours generally, it is worthy of attention in
the practice of the oil-painter, that the best effects of the former are
produced when they are used with a resinous varnish; as opaque pigments
are best employed in oil, and the two become united with best effect in
a mixture of these vehicles. The natural and artificial powers, or depth
and brilliancy, of every colour lie within the extremes of black and
white; hence it follows that the most powerful effects of transparent
colours are obtained by glazing them over black and white. As, however,
few transparent pigments have sufficient body, or tinging power for
this, it is often necessary to glaze them over tints, or deep opaque
colours of the required hues. There is a charm in transparent colours
which frequently leads to an undue use thereof in glazing; but glazing,
scumbling, and their combined process must be employed with discretion,
according to the objects and effects of a picture.
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Is The Commercial Name Of Green Lakes Prepared From Sulphate Of
copper. These vary in hue and shade, have all the properties of the common non-arsenical copper-greens, and, not being subject to change of colour by oxygen and light, stand the weather well, and are excellent for the use of the house-painter, &c. Hav... Is Thence Sometimes Called Bladder Green When Good It Is Of A Dark
colour and glossy fracture, extremely transparent, and a fine natural yellowish green. This gummy juice, inspissated and formed into a cake, is occasionally employed in flower painting. It is, however, a very imperfect pigment, disposed to attract the... It Is Common To Call The Solution In Turpentine Asphaltum And The
... It Is The Archeus Or Prime Colour Of The Tertiary Citrine;
characterises in like manner the endless number of semi-neutral colours ... It Is True That A Mixture Of Black And White Is Of A Cool Hue Because
black is not a primary colour, but a compound of the three primary colours in which blue predominates, a predominance which is rendered more sensible when black is diluted with white. As to the colour of the sky, in which light and shade are combined,... Jaune De Mars Jaune De Fer Iron Yellow &c Is An Artificially
prepared iron ochre, of the nature of sienna earth. In its general qualities it resembles the ochres, with the same eligibilities and exceptions, but is more transparent, as well as purer, clearer, richer, and brighter. Like them it is quite permanent... Juice Of A Plant Named Houng Hoa To Give It Brightness Of Tone
According to an analysis by M. Proust, the better kinds contain about two per cent. of camphor. By some, the pigment known as Sepia has been supposed to enter into their composition. ... Known As Liquid Prout's Brown Has Been Extensively Employed This
contains less fixative than the indelible ink, and is the vehicle with which nearly all Samuel Prout's drawings were executed. TTITLE LEITCH'S BROWN is a permanent pigment peculiar to water painting. A most beautiful olive brown, soft and rich, i... Known As Yellow Ochre Brown Ochre Roman Ochre Transparent Gold
... Known Likewise As Kremnitz Crems Or Krems White Is A Carbonate
of lead which derives its names from Kremnitz in Hungary, or Crems or ... Known Likewise As Raw Sienna Earth Terra Di Sienna &c Is A
ferruginous native pigment, firm in substance, of a glossy fracture, and very absorbent. It is of rather an impure yellow colour, and much used in landscape, being very serviceable both in distance and foreground. Unless proper skill is exercised in i... Krems In Austria It Is Also Called Vienna White Being Brought From
Vienna in cakes of a cubical form. Cremnitz white is the brightest white that is used in oil: it possesses rather less body than flake white, because the particles are finer. When newly prepared, it gives out a strong smell of vinegar. TTITLE FLAKE... Lake &c And Are Obtained From The Coccus Cacti An Insect Found On
a species of cactus, from the juice of which it extracts its nourishment. This coccus is a native of Mexico, where two kinds are recognised, under names which signify wild cochineal and fine cochineal. The latter may be considered a cultivated product... Lake A Term Derived From The Lac Or Lacca Of India Is The Name Of
a number of transparent red and other coloured pigments of great beauty, prepared for the most part by precipitating coloured tinctures of dyeing drugs upon aluminous bases. Consequently, the lakes form a numerous class, both with respect to the varie... Lake Florentine Lake Hamburgh Lake Roman Lake Venetian
... Lake Mineral Green Patent Green Mountain Green Marine
... Lately Called Factitious Ultramarine Is A Specially Fine Preparation
of M. Guimet, presenting the nearest approach to the natural product of any artificial ultramarine, both in transparency, purity of hue, and chemical characteristics. Equalling in depth and power the ordinary French ultramarine, it possesses greater c... Latent Colour Not Immediately Apparent Apart From The Beauty Which A
wealth of colour imparts, those pigments imbued with it are, as a rule, the most permanent. And not unnaturally so, for the more colour there is present, the longer it takes to be affected, either by exposure or impure air. Colour within colour, there... Lazuline Lazulite Blue And Lazurstein This Most Costly Most
permanent, and most celebrated of all pigments, is obtained by isolating ... Lazurium As We Are Told Is Made It Has Been Common To Confound
... Leaning To Blue The Names Of Violet Lilac Mauve &c Blue Is
a colour which it serves to mellow, or follows well into shade. The contrast or harmonizing colour of purple is yellow on the side of light and the primaries; while purple itself is the harmonizing contrast of ... Leithner's Blue Hungary Blue Dutch Ultramarine Zaffre Or
... Less Known As English Red Prussian Red And Scarlet Ochre True
Venetian red, that is, the red of the Venetians, was probably brought from India, and similar to our modern Indian red. The Venetian red of the present day, however, is an artificial product, containing no earthy base, and therefore improperly classed... Light Colours; Thus It Blues White Greens Yellow Purples Red
... Light Compounded With The Primary Red It Constitutes The Secondary
... Light Does Upon Opacity Or Reflecting Power Opacity Is Therefore
the antagonist of transparency, and qualifies pigments to cover in dead-colouring, or solid painting, as well as to combine with transparent colours in forming tints; and hence it is that semi-transparent pigments are suited in a mean degree both for ... Likewise Called Lac Lake This Is Obtained From The Lac Or Lacca Of
India, a resinous secretion which seems to depend upon the puncture of a ... Likewise Known As Spruce Ochre And Ocre De Rue Or More Correctly
... Liquid Asphaltum &c Is A Sort Of Mineral Pitch Or Tar Which Rising
liquid to the surface of the Lacus Asphaltites or Asphaltic Lake (the Dead Sea) concretes there by the natural action of the atmosphere and sun, and, floating in masses to the shores, is gathered by the Arabs. The French give it an additional name fro... Liquid Indian Ink Is A Solution For Architects Surveyors &c
TTITLE IVORY BLACK is ivory charred to blackness by strong heat in closed vessels. Differing chiefly through want of care or skill in preparing, when well made it is the richest and most transparent of all the blacks, a fine neutral colour perfec... Liquid Sepia Seppia Or Animal Aethiops Is Named After The Sepia
or cuttle-fish, also called the ink-fish, from its affording a dark liquid, which was used as an ink and pigment by the ancients. All the species of cuttle-fish are provided with a dark-coloured fluid, sometimes quite black, which they emit to obscure... Litharge Is Merely Fused Massicot Old Writers Speak Of Litharge Of
silver and litharge of gold, oxides of lead, pale and reddish yellow respectively. Commercial litharge, especially that which is foreign, contains sometimes a considerable proportion of oxide of copper and iron. The principal impurity, however, is gen... London And Nottingham White Flemish White Pattison's White
... Lose Sight Of That The Colour Of Shadow Is Always Transparent And
... Madder Or Madder Lake Speaking Of Pink Roses Mrs Duffield Remarks
that "the local colour is best imitated with pink madder," and the Messrs. Rowbotham observe "this heather may be best represented by cobalt and madder lake." In trade catalogues several names are often given, as in this instance, to one and the same ... Many Colours Are Apt To Change From The Action Of White Lead And Other
lead pigments, &c., principally those which are altered by light and air. Many, too, cannot safely come into contact with iron, or ferruginous pigments; especially the yellows of arsenic, the lakes of cochineal, and the blues and greens of copper. ... May Be Said Of Chinese Lake
TTITLE HAMBURGH LAKE Is a lake of great power and depth of colour, purplish or inclining to crimson, which dries with extreme difficulty, but differs in no other essential respect from preceding cochineal lakes--an observation which ... Mineralogique Of Paris Are Two Splendid Specimens Of The Stone In
which is seen the transition from the azure to the white. According to the quantity and quality of blue present, the lapis varies from an almost uniform tint of the deepest indigo-blue to grayish-white, dotted and streaked at intervals with pale blue.... Minium Or Saturnine Red Is An Ancient Pigment By Some Old Writers
confounded with cinnabar, and termed Sinoper or Synoper. It is an oxide of uncertain composition, prepared by subjecting massicot to the heat of a furnace with an expanded surface and free accession of air. Of a scarlet colour and fine hue, it is warm... Mixing Colours With Colours He Produces Compound Colours Or Hues
... Mixture With Drying-oil Bitumen: The Latter Is Likewise Known As
... More Directly Of The Secondaries Purple And Green In Each Of Which
blue is a constituent: hence blue occurs twice in the latter mode of forming olive, while red and blue enter therein singly and subordinately. Blue is, therefore, in every instance the archeus or predominating colour of olive; its perfect or middle hu... Mountains Of Kernhausen Whence It Is Sometimes Called Hungary Green
It is prepared from malachite, a beautiful copper ore employed by jewellers, and is a hydrated dicarbonate of copper, combined with a white earth, and often striated with veins of mountain blue, to which it bears the same relation that green verditer ... Mummy Brown Or Egyptian Brown Is A Bituminous Product Mixed With
animal remains, brought from the catacombs of Egypt, where liquid bitumen was employed three thousand years ago in embalming. By a slow chemical change, it has combined during so many ages with substances which give it, as a rule, a more solid and las... Native Cinnabar Or Vermilion The Yellows Are Said To Have Been In
many cases, vegetable colours; but it is likely earths and ochres were ... Native Ultramarine Natural Ultramarine Real Ultramarine True
... Neutral Colours Are Three Only White Black And Grey According
to the laws of Optics, the two first comprise all other colours synthetically, and afford them all by analysis. These are sometimes called "extreme" colours, grey being their intermediate. ... Note Here The Difference Between Gray As Spelt With An A And Grey As
... Numerous Colours Are Likewise Injured By Lime And Fire And Cannot
therefore be employed in fresco, or enamel painting. Of substances which may act deleteriously on colours, there remain the ... Ochre Oxford Ochre Stone Ochre Di Palito &c Are Native
earths, consisting chiefly of silica and alumina in combination with iron, which latter forms the principal colouring matter. They are among the most ancient of pigments, and their permanency is proved by the state of the old pictures. In a box of col...