Note: - "From the Transactions of the Cambridge Philosophical Society. Vol. XI. Part I."
- ULL copies are from the library of Augustus De Morgan, with his note on t.p. of copy at [DeM] L0 (B.P.41): "Recd Nov. 13/65".
- ULL copy at [DeM] L0 (B.P.41) is no. 7 in bound vol. of 10 tracts, chiefly by De Morgan, 1859-1869.
- DOI: 10.1163/9789004460409_MOR2-b29497929