Note: - "From the Transactions of the Royal Society of Edinburgh (read March 21, 1820)."
- ULL copies are from the library of Augustus De Morgan. Copy at [DeM] L0 (B.P.28) has his list of contents of vol. in which it is bound pasted on front flyleaf. T.p. inscription: "A. De Morgan Esqre from the author".
- ULL copy at [DeM] L0 (B.P.28) is bound with 16 other miscellaneous tracts, 1835-1840. Extract from "Punch", "The great Derby day", pasted in at end.
- DOI: 10.1163/9789004460409_MOR2-b28003937