The image shows a diagram with six cubes arranged in two rows of three. The cubes are depicted in a simple, line-drawing style, suggesting a technical or illustrative purpose. Each cube has a label written on one of its visible faces, indicating a color or state. **First Row:** * The first cube is labeled "Red" on its front face and "Orange" on its top face. * The second cube is labeled "Pink" on its front face and "Ochre" on its top face. * The third cube is labeled "Yellow" on its front face. **Second Row:** * The first cube is labeled "Null" on its front face. * The second cube is labeled "White" on its front face. * The third cube is labeled "Light Yellow" on its front face. The cubes are arranged in a way that suggests a possible relationship or sequence between the colors and labels. The image is accompanied by the caption "Fig. 82." The background is a pale yellow or beige color, and the lines are black.