of the matter upon which I spoke to you last night?"
She said nothing, but walked by his side with her eyes averted and her face aslant.
"I would not hurry you unduly," he continued. "I know that it is a matter which can scarcely be decided off-hand. In my own case, it cost me some thought before I ventured to make the suggestion. I am not an emotional man, but I am conscious in your presence of the great evolutionary instinct which makes either sex the complement of the other."
"You believe in love, then?" she asked, with a twinkling, upward glance.
"I am forced to."
"And yet you can deny the soul?"
"How far these questions are psychic and how far material is still sub judice," said the Professor, with an air of toleration. "Protoplasm may prove to be the physical basis of love as well as of life."
"How inflexible you are!" she exclaimed; "you would draw love down to the level of physics."
"Or draw physics up to the level of love."
"Come, that is much better," she cried, with her sympathetic laugh. "That is really very
