28th. He came to the house, and informed me he had been taken very ill on the 26th in the evening, and continued so all the next day. His complaints had been, great pains in his head and back, with heat, thirst, and restlessness. He was at this time, however, pretty well; but on inspecting the arms, they appeared much inflamed for a considerable space round the incision, and the erysipelatous appearance gradually extended itself over the greatest part of the arms between the elbow and shoulder. He now complained only of slight flying pains in his head and limbs, but without the least degree of fever: after a bad night’s rest several eruptions were discovered on the hips, and one on the neck. Some of these maturated, others dried away; and, upon the whole, the procedure was such as would not by any have been called variolous, if unattended with other circumstances. CASE II. Nov. 23d.] A healthy strong man, inoculated at the same time, and from the same person, with the last, accompanied him also on the 26th, when the arm of this patient appeared in a very doubtful state respecting the infection. On the 28th, when he came to the house, the skin at the incision was discoloured, felt hard, seemed thickened, did not appear inflamed; nor did he allow it had itched, or that he had perceived any alteration in his health. Things remaining in this state, I inoculated him again on the 30th in the morning, being the eighth day from the first inoculation. On the evening of the same day he complained of chilliness, attended with pain in his head and limbs, and passed an uneasy night. These complaints lasted in a very moderate degree for two days more, but without the least appearance of a fever. A very few pimples were discovered upon the decline of these symptoms, but they soon vanished without maturating. CASE III. Nov. 23d.] A third patient, a young man twenty years of age, was inoculated with the two last. I had not seen his arm from the time he was inoculated to the 28th, when he came to the house in company with the others. He said the incised part had itched very much the first three or four days, but it now appeared nearly in the same state as the preceding. He was also inoculated again on the 30th. But as the succeeding complaints, and doubtful eruption in this case, bore an exact resemblance to those of the former, it is needless to repeat them. Nothing happened to either from the second inoculation. CASE IV. 1765, May 5th.] A man aged twenty-four was inoculated; after which he went to visit a relation, till it should be thought proper for him to come to the house, which I directed him to do on the 11th, if he should continue well till that time. He took with him two calomel pills, one of five and the other of ten grains. He was ordered to take the least on the 8th, the other on the following night, and an ounce of purging salts the next morning.