314 F. W. Clarke on the Atomic Volumes of the Elements. 
to each other as 1:2:2:3. In the liquid state these elements 
have values standing to each other as 1:3:3: 4, and therefore, 
although in the case of carbon a ve simple connection ap- 
pears between the two states of aggregation, with the higher 
The specific gravity of the diamond is 3°55, according to Pe- 
louze, and from this we get as its atomic volume the number 34. 
erg; uranium 18-4, Peligot ; copper 8-94, a mean of five 
determinations by Marchand and Scheerer. Deduced from 
these, their atomic volumes are respectively, 7-1, 6°7, 71, 6%, 
‘84. 
f magnesium 
and also the double sulphates of magnesium and copper, a 
a ‘ 
ce all 
these salts. These metals in the free state represent three 
* See “Watts! Dictionary,” vol, i, Art. “ Atomic Volume.” 
a 
