Note 18 — Chapter III · SCIENTIFIC RESEARCHES: FIRST PERIOD.
Reading edition
“To the effect which takes place in this conductor [or uniting wire] and in the surrounding space, we shall give the name of the conflict of electricity.”...
“From the preceding facts we may likewise collect that this conflict performs circles; for without this condition, it seems impossible that the one part of the uniting wire, when placed below the magnetic pole, should drive it towards the east, and when placed above it towards the west; for it is the nature of a circle that the motions in opposite parts should have an opposite direction.”—H. C. Oersted, Ann. of Phil., Oct., 1820, pp. 273–276.