The Natural Philosophy of William Gilbert and His Predecessors

The essay reassesses the significance of an early treatise on magnetism by showing that the author introduced a reorganization of existing observations and theories rather than a wholly new experimental or quantitative science. It compares his explanations of lodestone and magnetic phenomena with ancient and medieval accounts — animistic, mechanical, and scholastic — and notes that much empirical material derived from earlier writers and practical navigational reports. The central contribution is presented as a coherent natural philosophy that systematized previous knowledge, rejected occult and fantastical explanations, and modified inherited concepts more than overthrowing them.