Cases, (not before in this journal) of practice with Perkins's patent metallic tractors / [Benjamin Douglas Perkins].

[London] : G. Cooke, [1801?]

2 unnumbered leaves ; (8vo)

Includes testimonials dated Sept. to Dec. 1800.

Copy 1 Note: Apparently inserted into issues of the Monthly Review without the editor's knowledge (see J. Corry, 'The detector of quackery', 1802, p. 39-40)