174 T. S. Hunt on Chemical Classification. 
ities os A Dae Be ARO. 
Hypochlorous acid, . : j (CL H)O. 
Hypochlorites, ; ‘ : . (ClM)O. 
Nitric acid, '  ( (NO, )H)O 
i ((NO,)M 
bs Pid 3 is 
ment of hydrogen in the original type gives rise to (SHO, ),O= 
S, H, O,, which is the Nordhausen acid commonly represented 
by 280,, HO. This latter compound as M. Gerhardt has shown 
corresponds to the anhydrous bisulphate of potash. 
The tribasic acids may equally be reduced to the same type if 
we conceive the elements which replace one equivalent of hydro- 
en to be bibasic instead of indifferent or monobasic. Phospho- 
¢ acid PH, O, is ((PH, O,)H)O. 
The primitive saline type is then essentially bibasic, and is pre- 
sented in its most elemental form in water, while the simplest 
type of the monobasic salt which is a derivative of the last, is 
found in hypochlorous acid. 
The ideas above announced show that it is possible to develop 
some connection between a series of compounds hitherto regard- 
ed as widely distinct from each other, and may lead us to hope 
that the time is coming when a new day will dawn upon the 
science. j 
M. Laurent proposes a view of elementary bodies that shall di- 
vide them into two classes, Which he designates as ~ 
P| é 
* 
the monasides, 7.* = _ ~~ ‘and the diodides. 
ot ee 
Ok, ee oe eR ite 
Ss Masta Clo 6. 
Se i. Br . As 
Te ae L:.; Me 
it Fl 
‘The vertical groups represent those bodies which are equivalent 
to each other and may be again divided into isomorphous groups. 
These elements may exist in any number of equivalents in or- 
ganic bodies, but the sum of those of the second group, in ac- 
cordance with his well known law,* will always be divisible by 
i ee 
* As this important law which Was first fully announced in the essay of M. 
Laurent, before quoted, may not be familiar to all our readers, we translate entire 
that portion of his memoir. ‘ M. Gerhardt has endeavored to show that ina reg- 
ular notation, the number of atoms of each element ought to be a pair, and that 
moreover in those combinations which do not téntain azote, the number of atoms 
af 
* i 
