1Thomas Jefferson to John H. Cocke, 28 July 1811 (Jefferson Papers)
sulfur; medicinal uses of [index entry]
2Benjamin Rush to Thomas Jefferson, 26 August 1811 (Jefferson Papers)
sulfur; medicinal uses of [index entry]
3Thomas Jefferson to Henry Dearborn, 5 July 1819 (Jefferson Papers)
sulfur; medicinal uses of [index entry]