3. There were _depressed_ or _locked_ cases, in which there were a sense of great debility, but little or no pain, a depressed and slow pulse, a cool skin, cold hands and feet, and obstructed excretions. 4. There were _divided_ or _mixed_ cases, in which the pulse was active until the 4th day, after which it became depressed. All the other symptoms of the locked state of the fever accompanied this depressed state of the pulse. 5. There were cases in which the pulse imparted a perception like that of a soft and _shattered_ quill. I have before mentioned that this state of the pulse occurred in Dr. Jones and Dr. Dobell. I felt it but once, and on the day of his attack, in the latter gentleman, and expressed my opinion of his extreme danger to one of my pupils upon my return from visiting him. I did not meet with a case which terminated favourably, where I perceived this _shattered_ pulse. A disposition to sweat occurred in this state of the fever. 6. There were what Dr. Caldwell happily called _walking_ cases. The patients here were flushed or pale, had a full or tense pulse, but complained of no pain, had a good appetite, and walked about their rooms or houses, as if they were but little indisposed, until a day or two, and, in some instances, until a few hours before they died. We speak of a _dumb_ gout and _dumb_ rheumatism; with equal propriety, the epithet might be applied to this form of yellow fever in its early stage. The impression of the remote cause of the fever, in these cases, was beyond sensation, for, upon removing a part of it by bleeding or purging, the patients complained of pain, and the excitement of the muscles passed so completely into the blood-vessels and alimentary canal, as to convert the fever into a common and more natural form. These cases were always dangerous, and, when neglected, generally terminated in death. Mr. Brown's fever came on in this insidious shape. It was cured by the loss of upwards of 100 ounces of blood, and a plentiful salivation. 7. There was the _intermitting_ form in this fever. This, like the last, often deceived the patient, by leading him to suppose his disease was of a common or trifling nature. It prevented Mr. Richard Smith from applying for medical aid in an attack of the fever for several days, by which means it made such an impression upon his viscera, that depleting remedies were in vain used to cure him. He died in the prime of life, beloved and lamented by a numerous circle of relations and friends. 8. There was a form of this fever in which it resembled the mild remittent of common seasons. It was distinguished from it chiefly by the black colour of the intestinal evacuations.