Physics and Chemistry. 409 
capacity, two-thirds filled with strong alcohol, which is then 
tightly corked. At first, a crystalline deposit is thrown down, 
d with th 
into a white powder permanent in the air, which is soluble in 
water and dilute alcohol, but insoluble in strong alcohol. It con- 
tains a trace of zinc, evidently fro ixture with sodio-zincic 
sulphite, since the impurity may be removed by recrystallization. 
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8 
S 
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Ss 
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rat 
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sulphurous, and writes its formula fei @, that of hydro-sodic 
sulphite being eo) Oat Of course the corresponding acid 
would be "Hl 6, It is much less stable than its sodic salt, 
and its formation by the action of the sulphurous acid upon zine 
is as follows: 
(H,S0,).+Z0=Zin $0,+50H.H0+H,6. 
* Th +s al tis: “Ty analy 4 ve a Aq 
qui £ mkweshenti boots aes ie ceux que donnerait le bisulfite anhydre de goude.” 
If this be true, then the formula given cannot be correct. Theory however, would 
lytical statement. 
‘ pee, Sse 
Confirm the formula, and look for a qualification of the anal 
—G. F. B] 
+ [By an evident misprint, this formula is give twice a8 pr x tO and once it is 
called “ bi de sodium! So also zincie sulphite is twice printed (SOs). Zn, 
instead of SO:Zn; and this error uncorrected, vitiates both the equations in which 
it occurs.—g. PF. B.] 
