1. It will lead us to be cautious in declaring any disease to be the external measles, in which there is not a general eruption. From my ignorance of this, I have been led to commit several mistakes, which were dishonourable to the profession. I was called, during the prevalence of the measles in the above-named season, to visit a girl of twelve years old, with an eruption on the skin. I called it the measles. The mother told me it was impossible, for that I had in 1783 attended her for the same disease. I suspect the anonymous author before-mentioned has fallen into the same error. He adds to the account before quoted the following words. "Others, who had undergone the measles formerly, had _at this time_ a fever of the erysipelatous kind, with eruptions like to which nettles cause, and all the _previous_ and concomitant symptoms of the measles, from the beginning to the end of the disease." 2. If inoculation, or any other mode of lessening the violence of the disease, should be adopted, it will be of consequence to know what persons are secure from the attacks of it, and who are still exposed to it. I shall now add a short account of my method of treating this disease. Many hundred families came through the disease without the help of a physician. But in many cases it was attended with peculiar danger, and in some with death. I think it was much more fatal than in the years 1773 and 1783, probably owing to the variable weather in the winter, and the coldness and dampness of the succeeding spring. Dr. Huxham says, he once saw the measles attended with peculiar mortality, during a late cold and damp spring in England. It was much more fatal (cæteris paribus) to adults than to young people. The remedies I used were, 1. _Bleeding_, in all cases where great pain and cough with a hard pulse attended. In some I found it necessary to repeat this remedy. But I met with many cases in which it was forbidden by the weakness of the pulse, and by other marks of a feeble action in the blood-vessels. 2. _Vomits._ These were very useful in removing a nausea; they likewise favoured the eruption of the measles. 3. _Demulcent_ and _diluting drinks_. These were barley water, bran, and flaxseed tea, dried cherry and raw apple water, also beverage, and cyder and water. The last drink I found to be the most agreeable to my patients of any that have been mentioned. 4. _Blisters_ to the neck, sides, and extremities, according to the symptoms. They were useful in every stage of the disease. 5. _Opiates._ These were given not only at night, but in small doses during the day, when a troublesome cough or diarrh[oe]a attended.