Hare’s New Galvanic Apparatus, Theory, &c. 107% 
stantly fused at the end on being sian in contact ~ 
‘some mercury communicating with the other. 
cylinders of charcoal having hemispherical calms 
were fitted into the brass cylinders and brought nearly into 
contact, a most vivid ignition took place, and continue 
after they were removed about a half or three quarters of 
ane be intensely ignited ee when the piece con- 
nected with the negative pole was ignited more towards 
the extremity approaching the positive. ‘The most intense. 
action seems to arise: rom placing a em ane of about 
tive pole, ney ee ao it in contact with, and afterwards 
removing it a small distance apart from a ses ce of charcoal 
(fresh from the fire) affixed to the other pole. 
As points are pre-eminently capable of carrying off (with- 
out being injured) a current of the electrical fluid, and very 
'~ ill qualified to conduct caloric ; while by facilitating radia- 
tion, charcoal favours the separation of caloric from the 
electricity which does not radiate ; this result seems consist- 
ent with my hypothesis, that the fluid as extricated a ed 
— oe sap eunepodad of caloric and — etricity se casted 
propert es to caloric ‘and electricity ; Os forme "predominating od see 
tion to the size of the pairs, the latter one o the number, being in 
cases excited by a powerful nei. you ncbatterles which ae 
In 
and the rgy of interposed agents ee: we see electricity evo 
without any i ra ‘Sent tity of vi 
we have size — the number | st possible, w ae 
sai it ca ets mae roma 
1en the contains enoug | electrici A Ath pro; 
pits * ai rough a small space in est or through chareoal, which 
r arrests the caloric, and ili to ae 
neiple heat is evolved, This ra 4 "for he evolution of intense 
ets those circumstances , which rarify the air, so that the length h of th the jet 
from ended “after its Sica ae 
al, OF 
esence of 
olumn, where the size of the pairs is i 
lori where 
Hence the riininn of the circuit negnast dod the inter 
heated space, are alone i ant 2 
quartz, Titroddoedthto'tt vraag fused, and heed: avery inne wie sap 
melted by the fluid —- ro a small wire agree at 
See Silliman "s Fon roal, N ough Bi a Sept. 1919. 
‘Filloch’s Ph Hosophical Mecsitak, ‘October, 18 
