“But honest, Doctor, wouldn’t the patients maybe have gotten better anyway? Wasn’t it maybe a post hoc, propter hoc? Have they ever experimented on a whole slew of patients together, with controls?”

“Probably not—and until some genius like yourself, Arrowsmith, can herd together a few hundred people with exactly identical cases of erysipelas, it probably never will be tried! Meanwhile I trust that you other gentlemen, who perhaps lack Mr. Arrowsmith’s profound scientific attainments and the power to use such handy technical terms as ‘control,’ will, merely on my feeble advice, continue to use ichthyol!”

But Martin insisted, “Please, Dr. Davidson, what’s the use of getting all these prescriptions by heart, anyway? We’ll forget most of ’em, and besides, we can always look ’em up in the book.”

Davidson pressed his lips together, then:

“Arrowsmith, with a man of your age I hate to answer you as I would a three-year-old boy, but apparently I must. Therefore, you will learn the properties of drugs and the contents of prescriptions because I tell you to! If I did not hesitate to waste the time of the other members of this class, I would try to convince you that my statements may be accepted, not on my humble authority, but because they are the conclusions of wise men—men wiser or certainly a little older than you, my friend—through many ages. But as I have no desire to indulge in fancy flights of rhetoric and eloquence, I shall merely say that you will accept, and you will study, and you will memorize, because I tell you to!”

Martin considered dropping his medical course and specializing in bacteriology. He tried to confide in Clif, but Clif had become impatient of his fretting, and he turned again to the energetic and willowy Madeline Fox.

II

Madeline was at once sympathetic and sensible. Why not complete his medical course, then see what he wanted to do?

They tramped, they skated, they skied, they went to the University Dramatic Society play. Madeline’s widowed mother had come to live with her, and they had taken a top-floor flat in one of the tiny apartment-houses which were beginning to replace the expansive old wooden houses of Mohalis. The flat was full of literature and decoration: a bronze Buddha from Chicago, a rubbing of Shakespeare’s epitaph, a set of Anatole France in translation, a photograph of Cologne cathedral, a wicker tea-table with a samovar whose operation no one in the university understood, and a souvenir post-card album. Madeline’s mother was a Main Street dowager duchess. She was stately and white-haired but she attended the Methodist Church. In Mohalis she was flustered by the chatter of the students; she longed for her home-town, for the church sociables and the meetings of the women’s club—they were studying Education this year and she hated to lose all the information about university ways.

With a home and a chaperone, Madeline began to “entertain”: eight-o’clock parties with coffee, chocolate cake, chicken salad, and word-games. She invited Martin, but he was jealous of his evenings, beautiful evenings of research. The first affair to which she enticed him was her big New Year’s Party in January. They “did advertisements”—guessed at tableaux representing advertising pictures; they danced to the phonograph; and they had not merely a lap-supper but little tables excessively covered with doilies.