To render the application of those means as extensive as possible, it will be proper to mention, under the first head, all those sources of summer and autumnal disease, which have been known to produce it in other countries, as well as in the United States. They are,
1. Exhalations from marshes. These are supposed to be partly of a vegetable, and partly of an animal nature. They are derived from the shores of creeks and mill ponds, as well as from low and wet grounds; also from the following vegetable substances in a state of putrefaction.
2. Cabbage. A malignant fever was produced at Oxford, by a putrid heap of this vegetable some years ago, which proved fatal to many of the inhabitants, and to several of the students of the university at that place.
3. Potatoes. Nearly a whole ship's crew perished at Tortola, by removing from her hold, a quantity of putrid potatoes.
4. Pepper.
5. Indian meal.
6. Onions.
7. Mint.
8. Anise and caraway seeds, confined in the hold of a ship.