Of Late Years In The German Coelin Known Here As Cerulian Blue And
:
ON THE PRIMARY, BLUE.
Coeruleum. What is chiefly wanted, however, is a colour combining the
wonderful depth, richness, and transparency of Prussian blue with the
strict stability of ultramarine. A permanent Prussian blue would be the
most valued gift the palette could receive.
TTITLE COBALT BLUES