1Richard Randolph to Thomas Jefferson, 10 April 1822 (Jefferson Papers)
The governor tells me that the cement which I sent you did not answer at all. From the...
2Enclosure: Richard Randolph’s Directions for Making Cement, [ca. 10 April 1822] (Jefferson Papers)
Spred Spread four measures of the powder upon a wooden floor, from six to ten or twelve inches...