chapter 3._

ELECTRICITY: A. D. 1820-1825. Oersted, Ampere, and the discovery of the Electro-Magnet.

"There is little chance ... that the discoverer of the magnet, or the discoverer and inventor of the magnetic needle, will ever be known by name, or that even the locality and date of the discovery will ever be determined [see COMPASS]. ... The magnet and magnetism received their first scientific treatment at the hands of Dr. Gilbert. During the two centuries succeeding the publication of his work, the science of magnetism was much cultivated. ... The development of the science went along parallel with that of the science of electricity ... although the latter was more fruitful in novel discoveries and unexpected applications than the former. It is not to be imagined that the many close resemblances of the two classes of phenomena were allowed to pass unnoticed. ... There was enough resemblance to suggest an intimate relation; and the connecting link was sought for by many eminent philosophers during the last years of the eighteenth and the earlier years of the present century."

_T. C. Mendenhall, A Century of Electricity,