1Thomas Jefferson’s Notes on Roman Cement, [ca. 21 November 1818] (Jefferson Papers)
building materials; cement, Roman [index entry]
2Enclosure: Richard Randolph’s Directions for Making Cement, [ca. 10 April 1822] (Jefferson Papers)
building materials; cement [index entry] building materials; cement, Roman [index entry]
3Enclosure: Circular on Roman Cement, [before 16 April 1821] (Jefferson Papers)
building materials; cement, Roman [index entry]
4Thomas Jefferson to William Thornton, 9 February 1815 (Jefferson Papers)
building materials; cement [index entry]
5Enclosure: Arthur S. Brockenbrough’s Statement of his Drafts on the University of Virginia Bursar, [ca. 26 November … (Jefferson Papers)
building materials; cement, Roman [index entry]
6William Thornton to Thomas Jefferson, 3 April 1815 (Jefferson Papers)
building materials; cement [index entry]
7Richard Randolph to Thomas Jefferson, 18 March 1822 (Jefferson Papers)
building materials; cement [index entry]
8Thomas Jefferson to Richard Randolph, 13 May 1822 (Jefferson Papers)
building materials; cement [index entry] building materials; cement, Roman [index entry]
9Thomas Jefferson to Arthur S. Brockenbrough, 20 April 1821 (Jefferson Papers)
building materials; cement, Roman [index entry]
10Andrew Smith to Thomas Jefferson, 16 April 1821 (Jefferson Papers)
building materials; cement, Roman [index entry]