The women were not behind the clergy in diffusing vaccine salvation. They were Jenner’s most devoted allies. He took pains to teach ladies to operate with “a light hand” so as not to draw blood, and boasted that one of his pupils had ten thousand patients to her credit, rescued from the terror and peril of smallpox! As Birch observed, it was not a question of medicine or of surgery that he and others had to deal with, but an outburst of enthusiasm in which the methods and arguments of science were swept heedlessly away. Any testimony to the credit of vaccination was accepted with alacrity, whilst the facts to its discredit were denied or explained away. This recklessness of procedure was most painfully manifest in the conduct of the Committee of the House of Commons which sat on Jenner’s first petition for money in 1802-- The number of witnesses in support of the application [wrote Birch] was 40, but out of the forty 28 spoke from mere hearsay, and not from knowledge acquired in practice; while the three who spoke against it were heard impatiently, though they corroborated their evidence with proofs. Birch wished to know what cowpox was. Jenner had said it was derived from horsegrease, but “that origin is proved to be erroneous, and is now given up, even by his best friends. On all hands it is admitted,” Birch continued, “that it is not a disease of the cow, but communicated to the cow by the milker. No cow that is allowed to suckle her own calf ever has the complaint.” What, then, is the disease in the milker? asked Birch. Is it smallpox? Is it _lues venerea_? Is it itch? A man came to St. Thomas’s Hospital from an adjacent dairy with a hand and arm covered with ulcerations. He said several of the milkers and the cows’ teats were affected in the same way, and he was told they had got cowpox. Birch called one of his country pupils and asked him what was wrong with the man. “It is itch--rank itch,” was his reply. A box of Jackson’s ointment for the itch was given to him, and at the end of a week he reappeared at the Hospital cured. If cowpox be itch, argued Birch-- Then if a patient be inoculated with the disorder, though it may suspend the capacity for Smallpox for a season in the constitution, it will ultimately prove no security-- Which was to say, that it was not probable that smallpox and itch could occur together, and that a person inoculated with itch would pass through the variolous test successfully. In this connection we may recall the fact that Jenner found it impossible to vaccinate a regiment at Colchester, the men with their women and children all being afflicted with itch. Still farther to complicate the mystery of cowpox, Jenner began to describe it as genuine and spurious, but which was the one and which was the other he left in bewildering uncertainty. Said Birch--