304 Torpedo Experiments, May, 1775 



In water. 



2 rows just sensible in hands. 



3 rows stronger. 



4 rows pretty strong D. 



I st leather Torpedo in water. 



4 rows nearly same, but I believe not so strong as last. 

 2 rows very slight. 



Out of water. 

 2 rows slight in elbows. 

 4 rows strong in elbows. 



601] Sat. May 27 [1775] with 2 nd leather Torpedo under water, 3 rows 

 charged to i\ on electrom. * 



Shock with one hand to one person seemed stronger, to another weaker 

 than with both. 



Communication being made with metals instead of the hands, no shock 

 was felt, but when all the rows were charged to 3, Mr Ronayne felt a small 

 shock. 



With wooden Torpedo, i row to i\; shock passed across 27 links of heavy 

 chain with light. It also passed across 4 links of small chain with light, but 

 not across 6. 



Without Torpedo, 5 + i + 2 to i|; shock passed with light through elec- 

 trom. , no candle in room; also with torp. charged as in trial. 



On a former night in trying wooden Torp., charged I believe much the 

 same as this time, no light was perceived, though Mr Hunter felt a shock, but 

 very weak. 



One candle in room, hid as well as possible behind screen. 

 With Gymnotus, all rows charged to 3$. 

 Doubtful. 



Dr Priestfley] and Mr Lane touching with i hand at same time, Dr Priestly 

 felt shock extend to elbow. 



A former night, 3 rows charged to \\, Mr N. thought the shock extended 

 to elbow; no one else thought so. 



Sat. May 27 [1775]. 



602] Old Torp. out of water 26 + A (8-i)f, tried with metals, weak shock; 

 New torp. B + A (4-6) as strong as former. 



The old Torp. tried with one hand holding metal against bottom side, in 

 other hand holding bright link. 



* [Art. 419. The (artificial) Gymnotus is not elsewhere mentioned.] 

 f [The numbers in brackets are the charge communicated to the battery or the 

 row. See Art. 583.] 



