The building used for a hospital for the poor was in the centre of the town, and probably contributed to spread wider the disease, and increase its malignity. _Fear_ in many instances was observed to produce most unfortunate effects upon the patient, and defeated the intended operations of medicine.—Some, in dreadful apprehension of the disease, seemed to abandon hope of life, and sunk in death. With all these causes for the increased prevalence and mortality of the fever, it plainly exhibited in its progress and various symptoms, the most malignant character. The number of those who recovered from an attack, between the 15th September, and 10th October, the period of its greatest prevalence, was small; though the number cannot be ascertained. After the latter period, as cooler weather advanced, the disease assumed a milder character, and more frequently yielded to the powers of medicine. In its type and symptoms it seems to have exhibited no peculiar characteristic marks or effects to distinguish it from the yellow fever of other seasons and places, as described by physicians; unless it be the greater mortality which attended it, and that is believed to be justly attributed to the causes already mentioned. Patients died commonly in one, three, or five days after taken, with all the symptoms of decided yellow fever. In the character of the disease, all the physicians agreed, but different methods of treating it were practised. The committee find difficulty in ascertaining “the extent of the sickness and mortality” with arithmetical exactness; although four of their number were continually in town, during the prevalence of the fever, and two others a considerable portion of the time. For a while the disease seemed to be mostly confined to those employed about the river and wharves, but in a few days after the prevalence of north wind, and clear, hot sun, (September 10th,) it spread rapidly thro’ the whole town, and from that date seems to have affected the Creole inhabitants, people of colour, and even slaves. It is also noticed to have been equally mortal with the female, as the male population; though the former might be supposed less exposed to the influence of the general causes of the disease, but they were, perhaps, oftentimes more exposed to the fever in their immediate attendance on the sick. The number of deaths from the first August to the tenth September, embracing every description of people, was estimated by the physician who attended the hospital, and the greatest number of the poor, and was probably better informed on the subject than any other person, at an average of one a day—forty souls. This may be nearly correct: and of this number it is ascertained that only nine were inhabitants of the town, or embraced in any estimate of our population. These persons are known to have died of various diseases incident to the climate, excepting five or six—who are supposed to have died of yellow fever. After the above period, the fever