| | R. 80. | O. 14. | W. 6. |
| | R. 87. | O. 8. | W. 5. |
| | R. 50. | O. 24. | W. 26. |
Burnt Sienna.
| R. 1¼. | O. 6. | W. 3. | N. 89½. |
| R. 22½. | O. 11½. | W. 2. | N. 64. |
| R. 25. | O. 12½. | W. 5½. | N. 57. |
Raw Sienna.
| O. 18½. | Y. 6½. | | N. 75. |
| O. 17. | Y. 14. | W. 1. | N. 68. |
| R. 8½. | Y. 3½. | W. 2. | N. 86. |
Indian Red.
| R. 11½. | O. 7. | W. 4. | N. 77½. |
| R. 13½. | O. 13½. | W. 2½. | N. 70½. |
A careful examination of these formulas and a reproduction and comparison of the colors on the color top will convince any one that in no case does the commercial name determine the color with a degree of accuracy sufficient for any valuable nomenclature.
Classification of Harmonies.
The theory of the harmonies of colors is a subject which awaits very careful investigation and a general discussion by artists and expert colorists. Such investigations must include many experiments based on common standards and uniform methods of measurements and records.