Discussion of Newton's work in showing the dispersion of white light into the various colors which comprise it. A discussion of color by reflection, using colored paper and colored filters to demonstrate. An opaque object is seen by the color of the light it reflects, all other frequencies are absorbed by the substance. White light was shown to be composed of the spectrum colors. When white light was passed through a prism, the spectrum colors were emitted, and when they were passed into a second prism, the white light was emitted. It was explained why a colored, opaque object when seen under a different color light appears black. Color by transmission was also discussed as well as the use of a pigment to absorb colors through a transparent substance