doors with the signs of mining companies, lumber companies, Central American railroad companies.
The McGurk Institute is probably the only organization for scientific research in the world which is housed in an office building. It has the twenty-ninth and thirtieth stories of the McGurk Building, and the roof is devoted to its animal house and to tiled walks along which (above a world of stenographers and bookkeepers and earnest gentlemen who desire to sell Better-bilt Garments to the golden dons of the Argentine) saunter rapt scientists dreaming of osmosis in Spirogyra.
Later, Martin was to note that the reception-room of the Institute was smaller, yet more forbiddingly polite, in its white paneling and Chippendale chairs, than the lobby of the Rouncefield Clinic, but now he was unconscious of the room, of the staccato girl attendant, of everything except that he was about to see Max Gottlieb, for the first time in five years.
At the door of the laboratory he stared hungrily.
Gottlieb was thin-cheeked and dark as ever, his hawk nose bony, his fierce eyes demanding, but his hair had gone gray, the flesh round his mouth was sunken, and Martin could have wept at the feebleness with which he rose. The old man peered down at him, his hand on Martin's shoulder, but he said only:
"Ah! Dis is good. . . . Your laboratory is three doors down the hall. . . . But I object to one thing in the good paper you send me. You say, ’The regularity of the rate at which the streptolysin disappears suggests that an equation may be found—"
"But it can, sir!"
"Then why did you not make the equation?"
"Well— I don't know. I wasn't enough of a mathematician."
"Then you should not have published till you knew your math!"
"I— Look, Dr. Gottlieb, do you really think I know enough to work here? I want terribly to succeed."
"Succeed? I have heard that word. It is English? Oh, yes, it is a word that liddle schoolboys use at the University of Winnemac. It means passing examinations. But there are no examinations to pass here. . . . Martin, let us be clear. You know something of laboratory technique; you have heard about dese bacilli; you are not a good chemist, and mathe-
