*518a. London, 1799.
Same title, place, and printer as no. 518, but: With notes 1799. 8°. ff. (2) + pp. xlviii + 189.
M, HCL, R. This second edition of no. 518 is dedicated to Pitt. The additions are slight.
My copy has the armorial bookplate of “Samuel Merriman M.D.’in two forms of arms.