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.

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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. Credit: Wellcome Collection. Public Domain Mark