A medical device called Perkins' Metallic Tractors was investigated by Dr John Haygarth in 18th-century Bath.
Perkins' Tractors: a fashionable remedy put to the test
Perkins' Tractors: a fashionable remedy put…
Perkins' Tractors: a fashionable remedy put to the test
A medical device called Perkins' Metallic Tractors was investigated by Dr John Haygarth in 18th-century Bath.