TABLE IV.
| Pigment. | Square Inches Aperture. | Light Intensity. | Black. | Red. | Orange. | |
| Carmine | 2 | 10 | ·5 | 20·2 | ·3 | — |
| " | 4 | 11 | ·5 | 19·1 | ·4 | — |
| " | 6 | 14 | ·46 | 18·95 | ·59 | — |
| " | 10 | 20 | — | 16·9 | 1·1 | — |
| " | 12 | 22 | — | 16·9 | 1·1 | — |
| " | Open | 26 | — | 16·9 | 1·1 | — |
| Yellow | ||||||
| Lemon Yellow | 2 | 10 | — | 6·9 | ·1 | — |
| " | 4 | 11 | — | 6·9 | ·1 | — |
| " | 6 | 14 | — | 6·9 | ·1 | — |
| " | 8 | 16 | — | 7·0 | — | — |
| " | 10 | 20 | — | 7·0 | — | — |
| " | 12 | 22 | — | 7·0 | — | — |
| " | Open | 26 | — | 7·0 | — | — |
| Blue. | Violet. | |||||
| Cobalt Blue | 2 | 10 | — | 10·5 | — | — |
| " | 4 | 11 | — | 10·5 | — | — |
| Green. | ||||||
| " | 6 | 14 | — | 10·5 | ·2 | — |
| Violet. | ||||||
| " | 8 | 16 | — | 10·5 | ·5 | — |
| " | 10 | 20 | — | 10·5 | ·5 | — |
| " | 12 | 22 | — | 10·5 | ·5 | — |
| " | Open | 26 | — | 10·5 | ·5 | — |
| Red. | Orange. | Light. | ||||
| Chrome Orange | 2 | 10 | — | 3·4 | 6·0 | — |
| " | 4 | 11 | — | 3·4 | 6·0 | — |
| " | 6 | 14 | — | 3·0 | 6·2 | ·05 |
| " | 8 | 16 | — | 3·0 | 6·0 | ·05 |
| " | 10 | 20 | — | 3·2 | 6·0 | ·05 |
| " | 12 | 22 | — | 3·2 | 6·0 | — |
| " | Open | 26 | — | 3·2 | 6·0 | — |
| Yellow. | Green. | |||||
| Emerald Green | 2 | 10 | — | ·2 | 6·4 | ·05 |
| " | 4 | 11 | — | — | 6·4 | ·05 |
| " | 6 | 14 | — | — | 6·4 | ·05 |
| " | 8 | 16 | — | — | 6·6 | 2·0 |
| " | 10 | 20 | — | — | 6·6 | 2·0 |
| " | 12 | 22 | — | — | 6·6 | 2·0 |
| " | Open | 26 | — | — | 6·6 | ·05 |
| Red. | Violet. | |||||
| Mauve | 2 | 10 | — | 3·0 | 7·4 | — |
| " | 4 | 11 | — | 3·0 | 7·4 | — |
| " | 6 | 14 | — | 3·0 | 7·4 | — |
| " | 8 | 16 | — | 2·8 | 7·2 | — |
| " | 10 | 20 | — | 2·8 | 7·2 | — |
| " | 12 | 22 | — | 2·8 | 7·2 | — |
| " | Open | 26 | — | 2·8 | 7·2 | — |
TABLE V.
COLOURED SURFACES
Table of Varying Luminous Intensities
| Inches Square. | Light Units. | Red. | Yellow. | Blue. | |||||
| “Carmine.” | “Lemon.” | “Cobalt.” | |||||||
| R. | Or. | Blk. | Y. | Or. | B. | Vi. | Blk. | ||
| 2 | 10 | 20·2 | ·3 | ·5 | 6·9 | ·1 | 11·5 | — | — |
| 4 | 14 | 19·1 | ·4 | ·5 | 6·9 | ·1 | 11·5 | — | — |
| 6 | 14 | 18·95 | ·59 | ·46 | 6·9 | ·1 | 10·7 | Gr. ·2 | ·1 |
| 8 | 16 | 16·9 | 1·1 | — | 7·0 | — | 10·5 | Vi. ·5 | — |
| 10 | 20 | 16·9 | 1·1 | — | 7·0 | — | 10·5 | ·5 | — |
| 12 | 22 | 16·9 | 1·1 | — | 7·0 | — | 10·5 | ·5 | — |
| Open 24 | 26 | 16·9 | 1·1 | — | 7·0 | — | 10·5 | ·5 | — |
| Inches Square. | Light Units. | Orange. | Green. | Violet. | |||||
| “Chrome.” | “Emerald.” | “Fr. Mauve.” | |||||||
| Or. | R. | Light. | Gr. | Y. | Light. | Vi. | R. | ||
| 2 | 10 | 6· | 3·4 | ·05 | 6·4 | ·2 | ·05 | 7·4 | 3· |
| 4 | 14 | 6· | 3·4 | ·05 | 6·4 | ·2 | ·05 | 7·4 | 3· |
| 6 | 14 | 6·2 | 3· | ·05 | 6·4 | — | ·05 | 7·2 | 3· |
| 8 | 16 | 6· | 3· | — | 6·6 | — | ·2 | 7·2 | 2·8 |
| 10 | 20 | 6· | 3·2 | — | 6·6 | — | ·2 | 7·2 | 2·8 |
| 12 | 22 | 6· | 3·2 | — | 6·6 | — | ·2 | 7·2 | 2·8 |
| Open 24 | 26 | 6· | 3·2 | — | 6·6 | — | ·05 | 7·2 | 2·8 |