294 



LOCALIZED ELECTRIZATION. 



Fig. 75. — Page's instrument. 



tator may be regulated relatively to that of tlie soft iron, in such 

 a manner as to obtain the maximum of effect, and to exhibit many 

 circumstances connected with the production of induced currents. 



" It should also be remarked that, in this instrument, a complete 

 revolution of the soft iron produces four induced currents, changing 

 their directions alternately ; while only two are produced by 

 instruments of the type of that of Pixii. 



F. — Instruynent of Dujardin. — " Constructed on the same prin- 

 ciples as the foregoing. 



G. — Instrument of MM. Breton, freres. — " Its principle is also 

 the same as that of Page's instrument ; but it was one of the first 



Fig 76.— Instrument of Breton, freres. 



