Primary Source
Thos. Wilson's Description of Regency Waltzing - 1816
I was rather surprised to find this extremely important work of dance history was not in the Library of Congress "American Memory" collection, and I could find no other copy online.
However, thanks to the late Desmond Strobel, I have a copy he had made of an original in his possession, and I have now posted it here for the general use of the dance community.