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Intelligence and Miscellaneous Articles. 



these currents find a conducting path, and there results a con- 

 tinuous circulation in a closed circuit. Such a rotating system, 

 if freely suspended in a magnetic field, would assume a definite 

 position of equilibrium, and generally would exhibit the character- 

 istic properties of a magnet. 



The above sketch represents two magnetic pairs connected by metallic 

 driving-bands. The feathered arrows show the direction, for a given 

 case, of the electric currents flowing in a closed circuit. The simple 

 arrow-heads indicate the direction of motion of the driving-bands. The 

 dotted line gives a plane projection of the electric circuit. 



II. If a system be constructed similar to the above, but with 

 the magnets all presenting their similar poles in the same direction 

 and rotating alternately in opposite directions (as might be secured 

 by using crossed driving-bands, simple toothed gearing, or by 

 connecting the ends of the magnets by " Stowe's flexible shafts "), 

 a strengthening or weakening of the magnetic effect would be 

 observable according to the direction of rotation, and the weak- 

 ening might be carried to the extent of making the previously 

 polarized system completely neutral. 



Degerloch (Wiirtemberg). 

 9th May, 1899. 





