will exhibit the very same Colours, which they did before they entered the Composition; as you see, Blue and Yellow Powders, when finely mixed, appear to the naked Eye Green, and yet the Colours of the component Corpuscles are not thereby really transmuted, but only blended. For, when viewed with a good Microscope, they still appear Blue and Yellow interspersedly.
- There are therefore two sorts of Colours. The one Original and Simple, the other compounded of these. The Original or Primary Colours are, Red, Yellow, Green, Blue, and a Violet-purple, together with Orange, Indico, and an indefinite variety of intermediate Gradations.
The same Colours in Specie with these primary Ones, may be also produced by Composition: For, a mixture of Yellow and Blue makes Green ; of Red and Yellow , makes Orange ; of Orange and Yellowish Green , makes Yellow . And in general, if any two Colours be mix'd, which in the Series of those, generated by the Prism, are not too