They were standing under the shadow of the hawthorn. He stooped gravely down, and kissed her glove-covered fingers. "I trust that _you_ may never have cause to regret your decision," he said. "I trust that _you_ never may," she cried, with a heaving breast. There were tears in her eyes, and her lips twitched with some strong emotion. "Come into the sunshine again," said he. "It is the great restorative. Your nerves are shaken. Some little congestion of the medulla and pons. It is always instructive to reduce psychic or emotional conditions to their physical equivalents. You feel that your anchor is still firm in a bottom of ascertained fact." "But it is so dreadfully unromantic," said Mrs. O'James, with her old twinkle. "Romance is the offspring of imagination and of ignorance. Where science throws her calm, clear light there is happily no room for romance." "But is not love romance?" she asked. "Not at all. Love has been taken away from the poets, and has been brought within the domain of true science. It may prove to be one of the great cosmic elementary forces. When the atom of hydrogen draws the atom of chlorine towards it to form the perfected molecule of hydrochloric acid, the force which it exerts may be intrinsically similar to that which draws me to you. Attraction and repulsion appear to be the primary forces. This is attraction." "And here is repulsion," said Mrs. O'James, as a stout, florid lady came sweeping across the lawn in their direction. "So glad you have come out, Mrs. Esdaile! Here is Professor Grey." "How do you do, Professor?" said the lady, with some little pomposity of manner. "You were very wise to stay out here on so lovely a day. Is it not heavenly?" "It is certainly very fine weather," the Professor answered. "Listen to the wind sighing in the trees!" cried Mrs. Esdaile, holding up one finger. "It is Nature's lullaby. Could you not imagine it, Professor Grey, to be the whisperings of angels?" "The idea had not occurred to me, madam." "Ah, Professor, I have always the same complaint against you. A want of _rapport_ with the deeper meanings of Nature. Shall I say a want of imagination? You do not feel an emotional thrill at the singing of that thrush?" "I confess that I am not conscious of one, Mrs. Esdaile." "Or at the delicate tint of that background of leaves? See the rich greens!" "Chlorophyll," murmured the Professor. "Science is so hopelessly prosaic. It dissects and labels, and loses sight of the great things in its attention to the little ones. You have a poor opinion of woman's intellect, Professor Grey. I think that I have heard you say so." "It is a question of avoirdupois," said the Professor, closing his eyes and shrugging his shoulders. "The female cerebrum averages two ounces less in weight than the male. No doubt there are exceptions. Nature is always elastic."