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Dr. Hare's Reply to Prof. Vanuxem. 291 
interesting phenomena observed by Professor Silliman, do 
not to me ap pear to be dependent for their importance on 
the nature of the projection which arises on carbon, when 
forming the negative pole of the deflagrator. That such an 
eee eee ire Pe 
rom a cursory observation made last winter, I was led 
to suppose the light of the deflagrator to be equal to that 
of sixteen hundred candle flames, condensed within a space 
no larger than that usually occupied by one. 
Since the above was written, in trying a deflagrator made 
for Professor Nott, the operator had bis eyes so much af- 
fected as to be bloodshot next day.* 7 
By means of the same deflagrator, a specimen of the fused 
or volatilized charcoal was obtained. This did not prove 
tobe magnetic. Instead of being malleable, or susceptibl. 
of a metallic polish, it was friable, and the fragments were 
without brilliancy. Seen by the aid of a powerful micro- 
scope, before it was broken, it was, both in colour and 
shape, exactly like the depositions or concretions of carbon, 
which have been formed in some instances during the gas- 
light process. © 
