The Insensible Perspiration.
Published as the Act directs June 20th 1794.
Stipple, printed in colours. 190 x 130mm, 7½ x 5¼", Slight soiling.
A naked man within a cloud, illustrating Sibley's theory of animal magnetism, which he defined as 'a sympathy which exists between the magnet and the insensible perspiration of the human body, whereby an aether, or universal effluvia, is made to pass and repass through the pores of the cuticle, in the same manner as the electrical fluid passes through bodies, and by which many cures are performed'. From Ebenezer Sibly's "Universal System of Natural History", a mixture of science and the occult.
Debus: 'Scientific Truth and Occult Tradition: the Medical World of Ebenezer Sibley (1751-1799)'; in Medical History, 1982.
[Ref: 21381] £130.00