Rhymes on Reading the Trial of William Burke and Helen M'Dougal for Murder, 24th December, 1828. (A Letter [15 Jan. 1829] to the Editor of the Caledonian Mercury [requesting Him to Raise a Subscription for James Gray and His Wife]. - Letter [15 Jan. 1829] to the Jury that Acquitted Helen M'Dougal. [Signed: Candidus, Pseud. of Robert Buchanan.]).