AN
ACCOUNT OF SPORADIC CASES
OF
YELLOW FEVER.
AS THEY
APPEARED IN PHILADELPHIA,
IN 1800.
The weather in the month of January was less cold than is common in that month. Catarrhs, the cynanche trachealis, and bilious pleurisies were prevalent in every part of it. A few cases of yellow fever occurred likewise during this month.
Several cases of erysipelas appeared in February.
The month of March was unusually healthy.
The weather was warm in April, and the city as healthy as in March.
It was equally so in May and June. The spring fruits appeared early in the latter month, in large quantities, and were of an excellent quality. Locusts were universal in June. They had not appeared since the year 1783. A record from the journal of the Swedish missionaries was published at this time, which described their appearance in 1715, in which year it was said to be very healthy.
On the 14th of June there was a severe thunder gust, with more lightning than had been known for seven years before.