Note 86 — {156} LETTER XIII

Benjamin Rush (1745-1813), a signer of the Declaration of Independence and member of the state convention of 1787, was the most eminent American physician of his day, and by his theories regarding the nature of yellow fever won recognition abroad. Serving as physician-general in the Revolutionary army, for twenty-nine years surgeon in the Pennsylvania Hospital, and throughout his life a practicing physician, he nevertheless found time to become identified with many public measures, notably the abolition of slavery, and the extension of public schools, and was a member of nearly every important literary and philanthropic society in Philadelphia.

John Redman Cox (1773-1864) was, like Rush, a Philadelphia physician, being trained at the University of Edinburgh. He was for many years professor of chemistry at the University of Pennsylvania, and edited several medical journals; but is best known as an early and pronounced advocate of vaccination.—Ed.