But they all stayed fit as fiddles! Not a soul of these nine men had so much as a touch of yellow fever! How wonderful is science, thought Walter Reed. “So,” he wrote, “the bubble of the belief that clothing can transmit yellow fever was pricked by the first touch of human experimentation.” Walter Reed was right. It is true, science is wonderful. But science is cruel, microbe hunting can be heartless, and that relentless devil that was the experimenter in Walter Reed kept asking: “But is your experiment really sound?” None of those men who slept in House No. 1 got yellow fever, that is true--but how do you know they were _susceptible_ to yellow fever? Maybe they were naturally immune! Then Reed and Carroll, who had already asked as much of Folk and Jernegan as any captain has ever asked of any soldier--so it was that Reed and Carroll now shot virulent yellow fever blood under the skin of Jernegan, so it was they bit Folk with mosquitoes who had fed on fatal cases of yellow fever. They both came down with wracking pains and flushed faces and bloodshot eyes. They both came through their Valley of the Shadow. “Thank God,” murmured Reed--but especially Walter Reed thanked God he had proved those two boys were not immune during those twenty hot stinking nights in House No. 1. For these deeds Warren Gladsden Jernegan and Levi E. Folk were generously rewarded with a purse of three hundred dollars--which in those days was a lot of money. V While these tests were going on John J. Moran, that civilian clerk from Ohio, whom Walter Reed had paid the honor of a salute, was a very disappointed man. He had absolutely refused to be paid; he had volunteered in “the interest of science and for the cause of humanity,” he had been bitten by those silver-striped Stegomyia mosquitoes (the bug experts just then thought this was the proper name for that mosquito)--he had been stabbed several times by several choice poisonous ones, but he hadn’t come down with yellow fever, alas, he stayed fit as a fiddle. What to do with John J. Moran? “I have it!” said Walter Reed. “This to do with John J. Moran!”