Time On A Tree Of The Common Black Spruce (abies Nigra) In The
:
ON THE PRIMARY, RED.
neighbourhood of Kingston. Having been but recently observed, a
sufficient quantity had not been obtained for a complete series of
experiments as to its nature and uses; but the habits of the insect, as
well as the properties of the dye, seemed to indicate that it might
become of practical importance. In colour it closely resembled ordinary
cochineal, but was rather more scarlet in hue. It was described as
capable of being produced in temperate countries. The colouring matter
had not then been thrown upon a base, nor do we know that it has since
been introduced as a pigment. If it possessed greater stability than
cochineal, with equal brilliancy and depth, this dye might form one of
those colours of the future, to whose possible sources we would direct
attention.