The sparrow grew steadily smaller, and in a moment the Doctor set it carefully on the rim of the ring. "Get him up by the scratch," whispered the Very Young Man. The men bent closer over the table, as the Doctor looking through his magnifying glass shoved the sparrow slowly along the top of the ring. "I can't see him," said the Banker. "I can," said the Very Young Man, "right by the scratch." Then after a moment, "he's gone." "I've got him right over the scratch," said the Doctor, leaning farther down. Then he raised his head and laid the magnifying glass and the callipers on the table. "He's gone now." "Gosh," said the Very Young Man, drawing a long breath. The Banker flung himself into a chair as though exhausted from a great physical effort. "Well, it certainly does work," said the Big Business Man, "there's no question about that." The Very Young Man was shaking the cardboard box in his hands and lifting its cover cautiously to see inside. "Let's try a lizard," he suggested. "Oh, what's the use," the Banker protested wearily, "we know it works." "Well, it can't hurt anything to try it, can it?" the Very Young Man urged. "Besides, the more we try it, the more sure we are it will work with us when the time comes. You don't want to try it on yourself, now, do you?" he added with a grin. "No, thank you," retorted the Banker with emphasis. "I think we might as well try it again," said the Big Business Man. The Very Young Man took one of the tiny lizards from the box, and in a moment they had dropped some water containing the drug down its throat. "Try to put him on the scratch, too," said the Very Young Man. When the lizard was small enough the Doctor held it with the callipers and then laid it on the ring. "Look at him walk; look at him walk," whispered the Very Young Man excitedly. The lizard, hardly more than an eighth of an inch long now, but still plainly visible, was wriggling along the top of the ring. "Shove him up by the scratch," he added. In a moment more the reptile was too small for any but the Doctor with his glass to see. "I guess he got there," he said finally with a smile, as he straightened up. "He was going fast." "Well, _that's_ all right," said the Very Young Man with a sigh of relief. The four men again seated themselves; the Big Business Man went back to his figures. "When do you start?" asked the Banker after a moment. "November 4th--8 P. M.," answered the Doctor. "Three weeks from to-night." "We've a lot to do," said the Banker. "What will this cost, do you figure?" asked the Big Business Man, looking up from his notes. The Doctor considered a moment.