1To James Madison from John Armstrong, 30 March 1809 (Madison Papers)
By the same vessel I propose con[s]igning to your patronage, a machine of prodigious consequence to us under our present circumstances—combining great usefulness & little expence, and meant to take the place of the common small Spinning-wheel in the manufacture of flax, tow and hemp. It occupies little more room than the Old spinning wheel, is put and kept in motion by any old or young Negro...