1Thomas Jefferson to David Hosack, 3 May 1815 (Jefferson Papers)
Observations on the Laws Governing the Communication of Contagious Diseases (D. Hosack) [index...
2Eusebio Valli to Thomas Jefferson, 5 June 1816 (Jefferson Papers)
Observations on the Laws Governing the Communication of Contagious Diseases (D. Hosack) [index...