Dr. Scott stated that we must either vaccinate or inoculate. He was vaccinated by his mother fifty years ago, and was protected yet. He had been revaccinated many times without effect. He regarded the humanized scab the best. He believed that the proportion that take again is less than Dr. Hart is inclined to suppose. Every community has a right to compel vaccination, and the question here is not of revaccination. Bovine virus removes the danger of the communication of syphilis, but the cultivation of the virus should be under State control. Much of the trouble had come from scabs or points from pustules where the lymph had been drawn off and the pustules allowed to refill. A refilled pustule can communicate almost anything. Dr. Smith said he had seen some of the worst arms he ever saw from revaccination. He would rather have a mild case of varioloid than such a case. It is not certain that a second sore is evidence that the patient will not have varioloid. Dr. Corlett stated that in the London Smallpox Hospital they had for twenty years made it a rule to vaccinate every attendant, and for twenty years there had been no case of smallpox among the attendants. There is more attention paid to instruction in vaccination there than here. Each student must go at least six times to one of the dozen government stations and receive instruction. Vaccination is done from arm to arm. As soon as the vesicle is formed, and before pustulation, a capillary tube is inserted and a portion of the lymph withdrawn. They do not believe that there is danger of scrofula or syphilis if there be no admixture of blood cells, either white or red, with the lymph. He believes that the cases of eczema and scrofula so often attributed to vaccination are really due to a dyscrasia of the patient. Dr. Millikin inquired how long the lymph retained its activity after being withdrawn into the capillary tube. Dr. Corlett stated that it could be used for six weeks or two months. Dr. Vance stated that the Germans of Cincinnati, irrespective of creed, preferred inoculation to vaccination. Hence there was always smallpox in Cincinnati. In spite of the stringent laws against it, inoculation was systematically carried on. The parent would take the infant to a neighboring hillside and leave it with a dollar-bill beside it, and go away. In a few minutes he would return, the dollar-bill would be gone, and the child was inoculated. The law against it cannot be enforced. ==================================================================== CORRESPONDENCE. -------------------------------------------------------------------- NEW YORK LETTER. THE USES OF COCAINE IN SURGERY.