EXPERIMENTS, 1771 



{ The Journal of Experiments, of which a formal description is contained ante in 

 Art. 217 onward. From MS. N. 12. See Table of Contents at the beginning of this 

 volume. The footnotes refer back to the formal account of results.} 



IST NIGHT*. 



438] East plate neg[ative] standing east and west. West plate positive] 

 north and south. East plate touched perpendicularly] by wire near midd[le]. 

 West wire bearing against north side of west plate. 



East 

 10* 

 12 

 12 



West 



12 a small matter positive. 



loj nearly same perhaps rather less negative. 



10 a good deal more. 



East plate touched flat near west side. 



12 io separated] very little, scarce enough to say 



whether positive or negative, 

 xoj 12 I thought rather more pos. 



Position of east and west plates reversed. Plates touched by wires as last 

 time. 



io 12 Seemed to separate rather more than before 



positive. 

 12 io did but just separate. 



' 439] 2ND NIGHT. 



ve e E negaSve e Both plates east and west, wires straight, 

 oj Tin, pasteboard, and tinfoil, each 12 inches; 



separated a little and equally negative. With 

 paper of 12 inches, in one or two first trials it 

 seemed to separate much the same. Afterwards 

 it did not separate at all, owing, as was supposed, 

 to its being too dry to conduct well, but after 

 being moistened it seemed to separate like the 

 rest. 



3j The same things being tried, the corks separated 



more than before and were positive, and I 

 believe pretty equally. 



* [Probably the first trials of the apparatus described in Art. 240.] 



142 



