The elements of dynamic electricity and magnetism (1903)
Atkinson, Philip. [from old catalog] · New York, D. Van Nostrand company · leaf 79
e field is represented insection ; which accounts rationally for the observed at-traction and repulsion. This hypothesis is strengthenedby the consideration that it is impossible for energy, inany form, to exist independent of matter, so that thefield could not be formed in an absolute vacuum •… … knowledge, or the hypothetical ether whose actual ex-istence has never been demonstrated. The interposition of any substance in the magneticfield except that of magnetic bodies, as iron or steel,or those termed diamagnetic, as bismuth and copper,offers no obstruction to magnetic induction ;…
Electricity · Magnetism
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