Cases, (not before in this journal) of practice with Perkins's patent metallic tractors
By: [Benjamin Douglas Perkins]
Publisher: G. Cooke
Published: 1801
Place of publication: London]
Language: eng
Notes: 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)