Color study; a manual for teachers and students (1895)
Cross, Anson Kent · Boston; Ginn & Company · leaf 58
47 suggestions to teachers. . The Pentagon. 1. Cut the pentagon, Fig. i. 2. Fold Fig. I oil line ab, and obtain Fig. 2. 3. Fold Fig. 2 on cd, and obtain Fig. 3. 4. Draw line ef, Fig. 3, and cut. 5. Transfer this unit to the other corners to obtain the desired units. 6. Cut on the lines drawn, and… … Cut the hexagon, Fig. I . I. Fold Fig; i on line ab, and obtain Fig. 2. 2. Fold Fig. 2 on line cd, and obtain Fig. 3. 3- Fold Fig. 3 on line ef, and obtain Fig. 4. 4- Fold Fig. 4 on line gh, and obtain Fig. 5. 5- Draw the line ks. Fig. 5, and cut. 6. Unfold, and obtain Fig. 6. 7- If it is desired…
Color
Internet Archive · Cornell University Library · Public domain (published before 1931). Free to use for anything.
![An illustration from L'optique divisée en trois livres : ou, l'On démontre d'une maniere aisée tout ce qui regarde 1. la propagation & les proprietez de la lumiere. 2. La vision. 3. La figure & la disposition des verres qui servent à la perfefectionner [sic] (1682)](https://img.insideoutlibrary.com/img/200/ia-loptiquedivise00ango-303-33.webp)
