dependent on the Motion of the Conductor. 99 



A. 



B. 



D. 



617-0 



615-8 



1-2 



617-5 



615-0 



2-5 



617-2 



614-9 



2-3 





Mean . 



. 2-0 



The deflection had now the same direction as in the next 

 preceding experiment. It thence follows that the part of the 

 current which coincided in direction with the water-flow, 

 going from d to c, exerted the greatest action. 



The glass tube was then inverted, so that the water flowed 

 again from a to b ; all beside unchanged: 



A. B. D. 



617-0 619-2 2-2 



617-8 620-4 2-6 



618-0 621-0 3K) 



Mean . . 2'6 



Consequently it was shown here also that the portion of the 

 current having the same direction as the water-stream was 

 stronger than the other. 



Series 2. — 1 This was similar to the preceding, but with the 

 difference that the disks in the side-tubes were not drawn so 

 far back, and so were placed near the inner surface of the glass 

 tube. They were more exposed, therefore, than before to the 

 mechanical action of the flow of water. 



The positive pole of the electromotor connected with the 

 middle disk : 



A. B. D. 



628-8 631-8 3-0 



628-8 632-0 ^2 



Mean . . 3'1 



The direction of the deflection showed that the current in 

 the same direction as the water-flow possessed a greater inten- 

 sity than the other. 



.After this the glass tube was inverted, so that the water 

 flowed through it in the opposite direction ; all beside un- 

 changed : 



A. B. D. 



628-9 626-0 2-9 



628-7 625-9 2-8 



628-9 625-2 3^7 



Mean . . 3'1 



The negative pole connected with the middle disk ; all else 

 unchanged : 



