Jour. Sei. Coll., \^ol. XXXVII., Art.l Plate IV. 



Drùinff Shftff of UtB^ Reffistering Driiriv nnd Its Accessories. 

 C^/h Actual, Size.. ) 



c 



i3°0 



Circuit -breaJters . 



o 



F ig. 2. 



Fug. 1. 



OJC 



Flg. 3. 



ÈÀ 



n 



:^ 



\Ç)\ Heyisterijig DruTn . 



Coupling . 



Fig. I . Drivithg Shaft- ojifL It^ Coupling . 

 Fig. 2 . Circuit- breaJee^r. 

 Fig. 3. Connection -chfmge.r. 



Shuti^r. ( ^/s AcIu-clL ■St'zey.) 



CentraZ Se^fyion/. 



Ba.rk Yi^eiv. 



Fi 



,<7 • 4- . 



K. Fuji : Researches on the Electric Discharge of the Isolated Electric Organ of Astra'pe 

 (Japanese Electric Ray) l)y Means of Oscillograph. 



