New cases, not before in this journal. ... The present representation of Perkins's patent metallic tractors, is given through this medium with a view to satisfy the daily applications made to the patentee by his numerous correspondents ...
Michael Laird (bookseller) description: Rare promotional pamphlet for Perkins's metallic tractors, one of the most extraordinary quack remedies for Man and Beast. Dr. Elisha Perkins (1741-1799), of Connecticut, had in 1795 introduced the use of "Metallic Tractors" for the treatment of...
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