470 LIVING TORPEDOS IN BERLIN. 



2. 



As in Series 1. 



C To". 0764. 

 II. 8. t +3571 -"of +85! - 5 t +74 I -0.5 t + 62 lo II I -85 



P- I 7-5 1 7 I 8.5 I 8.5] 8 I 7.5 I 7-5 48 II 4 



This series appears to show that, with short closing time of a weak 

 current, relatively negative polarisation disappears so soon that almost 

 nothing is left but homodromous absolutely and relatively positive 

 polarisation. 



3. 



3. Torp. 2. Day. OC 0-0129. 2-T. 



CT o".oo63. 

 V.S. t +500 I -350 1 +190 I -n8t +160 I -179 



P. +x 2.25 4.2 3-6 4.2 2-8 



15-54 I 4 I 4 

 This series shows that .under certain circumstances, with even five 

 Groves, positive and negative polarisation are beautifully produced. 



4; 



2. Torp. Fresh. L 23 mm. OC 0-0145. 2-'P. 



V.S. f + 35 I -126 t - I -122 f ( - 3 I -7 t + 2 8 



f +15 I 

 P. \ 29.5 | 23^ | 28 1 24-5 I 28 | 24.5 I 28 



Here the less favourable result in spite of more favourable conditions 

 can scarcely arise from the closing time having been more than ten times 

 as long, but must have been caused by the unontrollable irregularities 

 of the experiment. The effect in both directions of the third homo- 

 dromous current impulse is to be noted. 



5. 

 4. Torp. Fresh. 



CT io"-58o. 



V. S. f - 200 I 190, &c. 

 P. I 500+^4485 to 47 * 



Only negative polarisation results from a longer closing time. The 

 polarising current sinks to a small amount during this period, in spite of 

 non-polarisable electrodes. 



6. 



3. Torp. 3. Day. 3|-"P. 



CT o".oo32. CT i".024. 



X.- S. | -32 t +!9 I -54 t +4 I -4t +39 I -3t +35 I - a || I -"3t~79 I ~94,&c. 

 P.| 8.2 I 8.2 1 6.6 | 8.2 I 6.6 | 6-6 | 6-6 \ 11.5 J 6.6 1| | 301 ] 318 | 3I 8 



In this series, in which the closing time was the shortest possible, it 

 is seen that, as in series 2, negative polarisation subsides, whereas it 

 alone keeps the field when the closing time exceeds a certain limit. It 

 is striking, and reminds one of a twitch experiment to observe the 

 increase of the effects during the "first four alternations of the current. 



