An attempt to demonstrate, that all the phoenomena [sic] in nature may be explained by two simple active principles, attraction and repulsion : wherein the attractions of cohesion, gravity, and magnetism, are shewn to be one and the same, and the phoenomena of the latter are more particularly explained / by Gowin Knight.

Licence: Public Domain Mark

Credit: An attempt to demonstrate, that all the phoenomena [sic] in nature may be explained by two simple active principles, attraction and repulsion : wherein the attractions of cohesion, gravity, and magnetism, are shewn to be one and the same, and the phoenomena of the latter are more particularly explained / by Gowin Knight. Source: Wellcome Collection.