The Inspector cleared his throat and rapped upon the railing.

"Take a good look at this man. He's Fatty Welch, one of the cleverest thieves in the country. Does a little of everything. Began as a valet to a clubman in this city. He got settled for stealing a valuable pin about three years ago, and served a short term up the river. Since then he's been all over. His game is to secure employment in fashionable houses as butler or servant and then get away with the jewelry. He's wanted for a big job down in Pennsylvania. Take a good look at him. When he gets out we don't want him around these parts. I'd like you precinct-men to remember him."

The detectives crowded near to get a close view of the interesting criminal. One or two of them made notes in memorandum books. The slender man had a hasty conference with the Inspector.

"The officer who has Welch, take him up to the gallery and then bring him down to the record room," directed the Inspector.

"Get down, Fatty!" commanded Tom. McAllister, stupefied with horror, embarrassment, and apprehension of the possibilities in store for him, stepped down and followed like a somnambulist. As they made their way to the elevator he could hear the strident voice of the Inspector beginning again:

"This is Pat Hogan, otherwise known as 'Paddy the Sneak,' and his side partner, Jim Hawkins, who goes under the name of James Hawkinson. His pals call him 'Supple Jim.' Two of the cleverest sneaks in the country. They branch out into strong arm work occasionally."

The elevator began to ascend.

"You seem kinder down," commented Tom. "I suppose you expect to get settled for quite a bit down to Philadelphia, eh? Well, don't talk unless you feel like it. Here we are!"

They got out upon an upper floor and crossed the hall. On their left a matron was arranging rows of tiny chairs in a small school-room or nursery. At any other time the Lost Children's Room might have aroused a flicker of interest in McAllister, but he felt none whatever in it now. Tom opened a door and pushed the clubman gently into a small, low-ceiled chamber. Charts and diagrams of the human cranium hung on one wall, while a score of painted eyes, each of a different color, and each bearing a technical appellation and a number, stared from the other. Upon a small square platform, about eight inches in height, stood a half-clad Italian congealed with terror and expecting momentarily to receive a shock of electricity. The slender young man was rapidly measuring his hands and feet and calling out the various dimensions to an assistant, who recorded them upon a card. This accomplished, he ordered his victim down from the block, seated him unceremoniously in a chair, and with a pair of shining instruments gauged the depth of his skull from front to rear, its width between the cheekbones, and the length of the ears, describing all the while the other features in brief terms to his associate.

"Now off with you!" he ejaculated. "Here, lug this Greaser in and mug him."