Benen at wee 
J. W. Mallet on Osmious Acid. 57 
In the arsenic series the known oxyds are the following: 
2 
P,O 
NO PO RuO  AsO(?) OsO — SbO(?) Bi0@) 
O 
u, 3 2. 3 
NO, uO, OsO, 
ao FO, . RuO... AM), OM, om, Us 
NO, PO.() 0s0; - $bO, Bio, 
no, PO, AsO,  Os0 SbO, BiO,(?) 
0, 
18 usually considered an acid, but as it has not been obtained in 
the separate state, and all the hypophosphites contain water, it 
Pig _ reasonably assumed that the formula of the acid should 
include 
tne @ } 
SECOND 
8 
