Secret Correspondence: Connected with Mr. Pitt's Return to Office in 1804; Chiefly Compiled from the Mss; At Melville Castle; Not Published ( (Paperback)
On the Twelfth Axiom of the First Book of Euclid, And, on the Connexion Between the Quadrature of the Circle and the Geometrical Trisection of the Ang (Paperback)