One of the plants, a very fragile one, had expanded itself entirely at great height. Another was very small but thick set. Still another had no leaves. A fourth had only a small stem, some leaves and no branches. Each plant was different according to the colour that had shaded it, and even the one he had planted under the white glass was not quite normal. Not one was green, a fact which proves not only that colour but that glass has an action upon the plant. The only pretty plant was the one that had been planted in the open air. This one was normal. Continuing his experiments on the human body, Flammarion had panes of different colours set in the windows of his observatory. Each person who was sufficiently interested in his experiences not to be afraid of the annoyances of sitting still in light of a green colour for an hour or two, was able to feel the varied influences that colour conditions induce in the system. It is a fact, for example, that yellow causes enervation and that mauve engenders sleep. I asked M. Flammarion if he thought that the colours with which we are surrounded have an effect on our characters, and he replied: “There is no doubt, is there, that each of us is better satisfied with his appearance in one colour than in another? That is proved by experience, for everybody will tell you: ‘I love this colour,’ or ‘I don’t care for that one.’ Isn’t it also said that such and such a colour ‘suits’ or ‘doesn’t suit’ on such and such a person? All that appears to prove that colour must exert some sort of influence, moral or physical, or perhaps both simultaneously.” It is only when you become intimately acquainted with Flammarion that you appreciate what a deep thinker he is. [Illustration: M. AND MME. CAMILLE FLAMMARION, TAKEN AT JUVISY _Photo_ _Ellis_] In all his work he is ably seconded by his wife. She, too, is a deep thinker and a woman of remarkable initiative. She is one of the charter members of the Association for Disarmament, and she gives a great deal of time to other good works; yet these activities do not prevent her from being one of the simplest of women and most accomplished of housekeepers. It may be interesting to describe briefly Flammarion’s country house. They live in a château at Juvisy, in the very place where Louis XIII. first conceived the project of building a royal palace. The terracing was finished and the park laid out when there occurred a slight earthquake, and Louis XIII. renounced his plan, turning his attention to Versailles. But from that day to this no other earthquake has ever occurred there. The remarkable situation of Juvisy merits a visit from any one who loves natural beauty. The panorama that is unfolded from it is one of the loveliest in France.