I shall now proceed to describe the symptoms which this fever assumed during the periods which have been mentioned. This detail will be interesting to physicians who wish to see how little nature regards the nosological arrangement of authors, in the formation of the symptoms of diseases, and how much the seasons influence epidemics. A physician, who had practised medicine near sixty years in the city of Philadelphia, declared that he had never seen the dysentery assume the same symptoms in any two _successive_ years. The same may be said probably of nearly all epidemic diseases. In the arrangement of the symptoms of this fever, I shall follow the order I adopted in my Account of the Yellow Fever of 1793, and describe them as they appeared in the sanguiferous system, the liver, lungs, and brain, the alimentary canal, the secretions and excretions, the nervous system, the senses and appetites, upon the skin, and in the blood. Two premonitory symptoms struck me this year, which I did not observe in 1793. One of them was a frequent discharge of pale urine for a day or two before the commencement of the fever; the other was sleep unusually sound, the night before the attack of the fever. The former symptom was a precursor of the plague of Bassora, in the year 1773. I. I observed but few symptoms in the sanguiferous system different from what I have mentioned in the fever of the preceding year. The slow and intermitting pulse occurred in many, and a pulse nearly imperceptible, in three instances. It was seldom very frequent. In John Madge, an English farmer, who had just arrived in our city, it beat only 64 strokes in a minute, for several days, while he was so ill as to require three bleedings a day, and at no time of his fever did his pulse exceed 96 strokes in a minute. In Miss Sally Eyre, the pulse at one time was at 176, and at another time it was at 140; but this frequency of pulse was very rare. In a majority of the cases which came under my notice, where the danger was great, it seldom exceeded 80 strokes in a minute. I have been thus particular in describing the frequency of the pulse, because custom has created an expectation of that part of the history of fevers; but my attention was directed chiefly to the different degrees of _force_ in the pulse, as manifested by its tension, fulness, intermissions, and inequality of action. The _hobbling_ pulse was common. In John Geraud, I perceived a quick stroke to succeed every two strokes of an ordinary healthy pulse. The intermitting, chorded, and depressed pulse occurred in many cases. I called it the year before a _sulky_ pulse. One of my pupils, Mr. Alexander, called it more properly a _locked_ pulse. I think I observed this state of the pulse to occur chiefly in persons in whom the fever came on without a chilly fit.