| To properly identify this artifact, I will need tools for analysis. A diffractory chromascope should suffice, I think. |
| If he then closes the eye upon which the blue falls, and look with his other eye at the chromascope, he will perceive a yellow light. |
| Then, looking through the chromascope, a beautiful colored iris will appear, which, for the reason before given, will be single. |
| The preceding experiments illustrate sufficiently the powers of the chromascope with reflected light. |
| He persuades her and she consents, following a ritual play that's been the same since the chromascope was invented |
| Again, if a spiral of a diameter exceeding that of the chromascope be viewed, as in the last experiment, a single spiral iris will appear. |
