Stained glass windows (page L-37).
Student looking at yellow bulb through spectral glasses (page L-40).
Visible light (ROYGBV) spectrum (page L-40).
Red, green, and blue wavebands (page L-41).
Colored light simulation setup (page L-41).
Looking at white light through magenta gel (page L-47).
White light illuminating red card (page L-50).
Looking at yellow paper through a magenta gel (page L-51).