and shortly brought Hal a small glass brimming with a pale-brown liquid.
"Just fresh," he said. "Try it."
"My kidneys are all right," protested Hal. "I don't need any medicine."
"Take it for a bracer. It won't hurt you," urged the gnome.
Hal looked at his father, and, at his nod, put his lips to the glass.
"Why, it tastes like spiced whiskey!" he cried.
"Not so far out of the way. Columbian spirits, caramel, cinnamon and cardamom, and a touch of the buchu. Good for the blues. Finish it."
Hal did so and was aware of an almost instantaneous glow.
"Strong stuff, sir," he said to his father as they emerged into a clearer atmosphere.
"They like it strong," replied the other curtly. "I give 'em what they like."
The attendant gnome followed. "Mr. Dixon was looking for you, Dr. Surtaine. Here he comes, now."
"Dixon's our chief chemist," explained Dr. Surtaine as a shabby, anxious-looking man ambled forward.
"We're having trouble with that last lot of cascara, sir," said he lugubriously.
"In the Number Four?"
"Yes, sir. It don't seem to have any strength."
"Substitute senna." So offhand was the tone that it sounded like a suggestion rather than an order.
As the latter, however, the chemist contentedly took it.
"It'll cost less," he observed; "and I guess it'll do the work just as well."
To Hal it seemed a somewhat cavalier method of altering a medical formula. But his mind, accustomed to easy acceptance of the business which so luxuriously supplied his wants, passed the matter over lightly.
"First-rate man, Dixon," remarked Dr. Surtaine as they passed along. "College-bred, and all that. Boozes, though. I only pay him twenty-five a week, and he's mighty glad to get it."
On the way back to the offices, they traversed the checking and accounting rooms, the agency department, the great rows of desks whereat the shipping and mailing were looked after, and at length stopped before the door of a small office occupied by a dozen women. One of these, a full-bosomed, slender, warm-skinned girl with a wealth of deep-hued, rippling red hair crowning her small, well-poised head, rose and came to speak to Dr. Surtaine.
"Did you get the message I sent you about Letter Number Seven?" she asked.
"Hello, Milly," greeted the presiding genius, pleasantly. "Just what was that about Number Seven?"
"It isn't getting results."
"No? Let's see it." Dr. Surtaine was as interested in this as he had been casual about the drug alteration.
"I don't think it's personal enough," pursued the girl, handing him a sheet of imitation typewriter print.
"Oh, you don't," said her employer, amused. "Maybe you could better it."
"I have," said the girl calmly. "You always tell us to make suggestions. Mine are on the back of the paper."
"Good for you! Hal, here's the prettiest girl in the shop, and about the smartest. Milly, this is my boy."
The girl looked up at Hal with a smile and brightened color. He was suddenly interested and appreciative to see to what a vivid prettiness her face was lighted by the raised glance of her swift, gray-green eyes.
"Are you coming into the business, Mr. Surtaine?" she asked composedly, and with almost as proprietary an air as if she had said "our business."
"I don't know. Is it the sort of business you would advise a rather lazy person to embark in, Miss—"
"Neal," she supplied; adding, with an illustrative glance around, upon her busy roomful, all sorting and marking correspondence, "You see, I only give advice by letter."
She turned away to answer one of the subordinates, and, at the same time, Dr. Surtaine was called aside by a man with a shipping-bill. Looking down the line of workers, Hal saw that each one was simply opening, reading, and marking with a single stroke, the letters from a distributing groove. To her questioner Milly Neal was saying, briskly:
"That's Three and Seven. Can't you see, she says she has spots before her eyes. That's stomach. And the lameness in the side is kidneys. Mark it 'Three pass to Seven.' There's a combination form for that."
"What branch of the work is this?" asked Hal, as she lifted her eyes to his again.
"Symptom correspondence. This is the sorting-room."
"Please explain. I'm a perfect greenhorn, you know."
"You've seen the ads. of course. Nobody could help seeing them. They all say, 'Write to Professor Certain'—the trade name, you know. It's the regular stock line, but it does bring in the queries. Here's the afternoon mail, now."
Hundreds upon hundreds of letters came tumbling from a bag upon the receiving-table. All were addressed to "Prof." or "Dr." Certain.
"How can my father hope to answer all those?" cried Hal.
The girl surveyed him with a quaint and delicious derision. "He? You don't suppose he ever sees them! What are we here for?"
"You do the answering?"
"Practically all of it, by form-letters turned out in the printing department. For instance, Letter One is coughs and colds; Two, headaches; Three, stomach; and so on. As soon as a symp-letter is read the girl marks it with the form-letter number, underscores the address, and it goes across to the letter room where the right answer is mailed, advising the prospect to take Certina. Orders with cash go direct to the shipping department. If the symp-writer wants personal advice that the form-letters don't give, I send the inquiry upstairs to Dr. De Vito. He's a regular graduate physician who puts in half his time as our Medical Adviser. We can clear up three thousand letters a day, here."
"I can readily see that my father couldn't attend to them personally," said Hal, smiling.
"And it's just as good this way. Certina is what the prospects want and need. It makes no difference who prescribes it. This is the Chief's own device for handling the correspondence."
"The Chief?"
"Your father. We all call him that, all the old hands."
Hal's glance skimmed over the fresh young face, and the brilliant eyes. "You wouldn't call yourself a very old hand, Miss Neal."
"Seven years I've worked for the Chief, and I never want to work in a better place. He's been more than good to me."
"Because you've deserved it, young woman," came the Doctor's voice from behind Hal. "That's the one and only reason. I'm a flint-livered old divvle to folks that don't earn every cent of their wages."
"Don't you believe him, Mr. Surtaine," controverted the girl, earnestly. "When one of my girls came down last year with tuber—"
"Whoof! Whoof! Whoof!" interrupted the big man, waving his hands in the air. "Stop it! This is no experience meeting. Milly, you're right about this letter. It's the confidential note that's lacking. It'll work up all right along the line of your suggestion. I'll have to send Hal to you for lessons in the business."
"Miss Neal would have to be very patient with my stupidity."
"I don't think it would be hard to be patient with you," she said softly; and though her look was steady he saw the full color rise in her cheeks, and, startled, felt an answering throb in his pulses.
"But you mustn't flirt with her, Hal," warned the old quack, with a joviality that jarred.
Uncomfortably conscious of himself and of the girl's altered expression, Hal spoke a hasty word or two of farewell, and followed his father out into the hallway. But the blithe