frame so as to give us a magnetic field, and there are pole pieces that can tween them there is still a higher maxi- mum, right between the poles. This case be removed at will ; in fact, there are also has been integrated on Mr. Boys' three sets of pole pieces for experiment- machine, and shows the… … I pass from Dr. Isenbeck's researches, and the integrated curves of potential which I have deduced from them, to some further researches of my own, which were undertaken with the view of throwing some light on the question whether the Pacinotti form of armature, poles is set an axis of brass, upon…
Engineering
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