London: Frye, 1797. hardcover. The Fourth Edition, Revised and Enlarged. 440pp. + 28 pp. Index; folding chart. 8vo, orginal calf, upper joint cracked, spine worn, title page foxed. London: H. Frye for C. Dilly, 1797. good.
First published in 1795 by the London police magistrate. "Much of the information still possesses some interest.... The work attracted the attention of the government, and even of the king.... It was doubtless this work which stimulated the university of Glasgow to confer on Colquhoun, in 1797, the degree of LL.D." -- D.N.B. IV, 859.