276 Scientific Intelligence. 
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SiF2+-RF, while Troost and Deville have shown from the vaf 
of chlorid of zirconium that its true formula is ZClh=2 vols. of 
if we assume that all compounds correspond to 4 vols. in a gase 
The vapor density of SiCl2 also agrees with the supposition that 
is diatomic, supposing it to represent 2 v e true equivalent 
on and zirconium become therefore respectivel 
88, if we admit the 4-volume theory. e equivalents of 
rodie. 
phon, instead of 33. If now we multiply the spec. 
as found by Regnault, namely 0-201, by 22 we have 4°4 
heat of an atom of graphon does not obey 
nd 5:5. The cae - 
die’s compounds become, if we take the equivalent f ont bh Brodie 
ed out between owe ko 
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