"Did he? People do sort of keep an eye on one another around here, don't they."
"You bet your life they do, and that's why I tell you you ought to cut out the poker and the booze. You don't see me needing any liquor, do you?"
Martin more desperately than ever felt the whole county watching him. He was not a praise-eater; he was not proud that he should feel misplaced; but however sturdily he struggled he saw himself outside the picture of Wheatsylvania and trudging years of country practise.
Suddenly, without planning it, forgetting in his admiration for Sondelius and the health war his pride of the laboratory, he was thrown into a research problem.
There was blackleg among the cattle in Crynssen County. The state veterinarian had been called and Dawson Hunziker vaccine had been injected, but the disease spread. Martin heard the farmers wailing. He noted that the injected cattle showed no inflammation nor rise in temperature. He was roused by a suspicion that the Hunziker vaccine had insufficient living organisms, and he went yelping on the trail of his hypothesis.
He obtained (by misrepresentations) a supply of the vaccine and tested it in his stuffy closet of a laboratory. He had to work out his own device for growing anaërobic cultures, but he had been trained by the Gottlieb who remarked, "Any man dat iss unable to build a filter out of toot'-picks, if he has to, would maybe better buy his results along with his fine equipment." Out of a large fruit-jar and a soldered pipe Martin made his apparatus.
When he was altogether sure that the vaccine did not contain living blackleg organisms, he was much more delighted than if he had found that good Mr. Dawson Hunziker was producing honest vaccine.
With no excuse and less encouragement he isolated blackleg organisms from sick cattle and prepared an attenuated vaccine of his own. It took much time. He did not neglect his patients but certainly he failed to appear in the stores, at the poker games. Leora and he dined on a sandwich every evening and hastened to the laboratory, to heat the cultures in the im-
