"I need to know something about the pigment patches," he said jerkily.
And there were the splotches of pigment of which Calhoun had heard.
Tan also is due to pigment in the skin and is caused by light.
It is a matter of regret that this pigment is not equally efficacious in oil.
Like the chrome molybdate it would be superfluous as a pigment.
It has not been, however, ...