Correspondence of T. Sterry Hunt. 271 
3. Correspondence of T. Srerry Hunt, F.RS. (In a letter to the Editors, 
dated Montreal, February 1, 1863.) 
Gentl 
of Schénbein’s and Béttger’s important observations upon the formation 
trogen. May I beg of you, as an important part of the history of this sub- 
= 
notice of it, which appeared in this Journal for July 1861, (vol. xxxii, 
P. 109) was dated and sent to you in Jan. 1861. (You are aware that the 
date of 1860, there assigned to it, is a printer’s error.) The observation 
however has not the merit of great originality, for I was led to it by a 
remark in @melin’s Handbook (Cavendish Soc. Ed., iv, p. 211) pub- 
ed in 1850, where Forchhammer’s remark, that rmanganic acid 
‘volves “ an electrical odor,” is cited, with a suggestion that this may be 
le to ozone. 
. world, In this connection I may be permitted to express my satis- 
a that the Kantian doctrine of the interpenetration of matter, which 
Your Journal. See, on this subject, my paper On the Theory of Chemical 
ges, which appeared in this Journal for March, 1853, (vol. xv, p. 226,) 
and was reproduced in the LZ. E. and D. Philos. Magazine, and in a Ger- 
Man translation in the Chem. Centraiblatt. See also my Thoughts on 
Say that Kant’s Rarer of chemical union “involves a mechanical 
*heeption, and is therefore inadequate, I, in which chem- 
“al combination is said to be an identification of the different, is how- 
ever completely adequate. His process involves an identification not 
Only of volumes, (interpenetration, mechanically. considered,) but of 
ay Pei characters of the combining bodies.” See this doctrine 
gut by Stallo, Philosoph 
. & the pian hypothesis, sgh note On Atomic Volumes, read betore 
Nature, p. 87. See also my cn tw 
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