Mrs. Jones was a widow, and poor.  She lived full a quarter of a mile away.  So in deciding to make the visit that night, I hardly think a very strong element of self-interest was included in the motives that governed me.  But that is irrelevant.

“As there is no prospect of an abatement in the storm,” said I, after returning to our cosy little sitting-room, “it may be as well for me to see the baby at once.  The visit will be over, so far as I am concerned, and precious time may be gained for the patient.”

“I will tell Joseph to bring around the horse,” said my wife.

“No—­I will walk.  Poor beast!  He has done enough for one day, and shall not be taken out again.”

“Horse-flesh is not so precious as man-flesh,” Constance smiled entreatingly, as she laid her hand upon my shoulder.  “Let Tom be harnessed up; it won’t hurt him.”

“The merciful man is merciful to his beast,” I made answer.  “If horse-flesh is cheaper than man-flesh, like most cheap articles, it is less enduring.  Tom must rest, if his master cannot.”

“The decision is final, I suppose.”

“I must say yes.”

“I hardly think your great coat is dry yet,” said my wife.  “I had it hung before the kitchen fire.  Let me see.”

“You must wait for ten, or fifteen minutes longer,” she remarked, on returning from the kitchen.  “One sleeve was completely wetted through, and I have turned it in order to get the lining dry.”

I sat down and took Agnes on my lap, and was just getting into a pleasant talk with her, when the door-bell rung.  A shadow fell across my wife’s face.

“People are thoughtless of Doctors,” she remarked, a little fretfully, “and often choose the worst weather and the most untimely seasons to send for them.”

I did not answer, but listened as the boy went to the door.  Some one was admitted, and shown into the office.

“Who is it?” I enquired, as Joseph came to the sitting-room.

“Mrs. Wallingford.”

My wife and I exchanged glances.  She looking grave and curious; but no remark was made.

“Good-evening, Mrs. Wallingford,” said I, on entering my office.  “This is a very bad night for a lady to come out.  I hope no one is seriously ill.”

“I wish you would come over and see our Henry, Doctor.”

There was a choking tremor in her voice; and as I looked in her face, I saw that it was pale and distressed.

“What’s the matter?” I inquired.

“I can’t say what it is, Doctor.  Something’s wrong.  I’m afraid—­yes, I’m afraid he’s going out of his senses.”

And she wrung her hands together with a nervous uneasiness in singular contrast with her usual quiet exterior.

“How is he affected?”