A Drawing Board should be of soft pine and free from knots, so that it will easily receive the pins or tacks used to fasten down the paper. Its surface should be flat and level, or a little rounding, so that the paper shall lie close to its surfa... Read more of The Drawing Board at How to Draw.caInformational Site Network Informational
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Cadmium White








Provided the metal be freed from iron, which we have commonly found to
be more or less present, a white of considerable beauty may be produced;
either directly by precipitation as hydrated oxide or carbonate, or
indirectly by exposing the brown anhydrous oxide to air and light--the
latter mode yielding a product of greater opacity. However prepared,
cadmium white is deficient in body, and apt to assume a yellow tint on
meeting with an impure atmosphere.





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