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- Browns And The Cold Semi-neutral Grays Marrone Is Practically To
- Black Chalk
- Composition Chemical Analysis Has Shown Several Of The Blues To Be
- Also Called Scarlet Chrome Is A Bright Chromate Of Lead Of An
- Burnt Verdigris
- Less Known As English Red Prussian Red And Scarlet Ochre True
- Belong The Dutch And Flemish Schools; The Sensible Which Aims At
- Olive In Dark Green; Russet And Citrine In Dark Orange The
- Known Likewise As Raw Sienna Earth Terra Di Sienna &c Is A
- Root Of The Anchusa Tinctoria Commonly Known As Alkanet A Plant

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- Of Those Pigments Would Do The Rich Yellowness Entirely Disappearing
- &c As Well As Of The Semi-neutral Gray &c: It Therefore Is Changed
- Orange De Mars Is A Subdued Orange Of The Burnt Sienna Class But
- Green Ultramarine
- Yellow Is A Chief Constituent: Hence Brown Is In Some Measure To Shade
- Sensible Perfection It Attained Harmony Of Colouring And Effect In
- Tertiary Colours Are Three Only Citrine Russet And Olive
- Together Instead Of Blending Them On The Palette May Be Attributed
- With Regard To Colours Individually It Is A General Law Of Their
- Are The Negative Powers Or Neutrals Of Colours And The Extremes Of

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 is a native cinnabar so
pure as only to require grinding to become very perfect vermilion.
Whether the natural possesses any advantages over the artificial,
appears to admit of doubt: Bouvier thought that the former blackened
more than the latter, and others coincide with him. As, however, native
vermilion has become commercially obsolete, the question of their
comparative permanence is of little importance. Theoretically, it is
difficult to assign a reason why there should be any difference between
the two.

Vermilion is capable of being made by both wet and dry processes, but
the last are almost exclusively adopted on a scale, and are, we
believe, preferable. Our opinion, expressed with some diffidence, is,
that pigments whose colour depends on the union of sulphur with a
metal--such as vermilion and cadmium yellow--are more stable when the
sulphur is forced to bite into the base. This can only be effected by a
considerable degree of heat, far greater than can be obtained in any
moist method. We hold that in pigments so produced, the sulphur is less
liable to oxidation by air and light, and that therefore the colour
better withstands exposure to those agents. Before now, vermilions have
been taxed with fading in a strong light: supposing them genuine, it
would be interesting to know by what mode they were manufactured.

There are two kinds of vermilion in common use, European and Chinese, of
which the first inclines to orange and the second to purple. These





Next: Include The Several Varieties Known As--vermilion Deep Vermilion
Previous: Vermilion Is So Called From The Italian Word Vermiglio (little Worm)

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