176 T. S. Hunt on Chemical Classification. 
“The molecules of the monasides may also divide in two, but 
the half of the molecule does not necessarily require a comple- 
mentary half to form a combination. This s half can unite itself 
with an entire diodide. (HH) +(HH)+(00)=(HH)O+(HH)O 
or With an entire monaside, Se Wa Wardaml red 5: Cae )0, 
or with the half of a monaside, (CC)+(00)=(CO)+(CO).” 
“Tf instead of taking one volume for some bodies, two for oth- 
ers and four for others as is ordinarily done ; or if in place of ta- 
king with M. Gerhardt one volume for simple bodies and two for 
compounds, we represent all bodies whether simple or compound 
by one volume, we have a much more regular notation and one 
which taken in ‘connection with the preceding ideas, enables us 
to represent the formulas of all bodies, without employing frac- 
tional numbers.” 
“We admit that each molecule of the simple bodies is at least 
divisible into two parts which we designate atoms ; the molecules 
can only be divided in case of combination, we have then 
Oxygen, . " UV 2 vol. 
Hydrogen, : H. == 12-5 ; 1 vol. 
Water, H,O0=1126: . ¢ voR 
Hydrochloric acid, HCl=227-0 1 vol. 
2% Bach letter O, H, Cl represents a demi-volume or demi-mole- 
cule or one atom. The formula of all these bodies indicates im- 
mediately the condensation.” In no case do I change the notation 
of M. Gerhardt. 
“The atom of M. Gerhardt represents the smallest quantity of 
a simple body which can exist in a combination. My molecule 
represents the smallest quantity of a simple body which can be 
employed to effect w combination, a quantity which is divided in- 
to two parts by the very act of combination. Fer example, Cl can 
enter into combination, but to pi this it is necessary to employ 
ge my propositions a curious consequence is aed 
M. Gerhardt has remarked that it is impossible that the nitric and 
chloracetie acids can aes water, because the formulas of these 
three bodies are NHO, 7 C, HCl, O, andH,O. It will be seen 
poh this difficulty is not pas by adopting the ordinary formulas, 
0,4+H,0 and ©,Cl, e,, H,O, for it will then be necessary to 
robe water by i aaa 
elieve that we. may go farther and not only say that the 
hydrogen is not combined with oxygen, in the nitric acid, but 
that it is combined with azote, the two atoms of these bodies 
being complementary to each other. 
Taking one volume which for the simple bodies represents one 7 
eaelotule : or two atoms: 
' 
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