( 250 ) 
mann l ) from 50° to 100°; these determinations, however, were 
repeated before we proceeded to higher temperature, that the obser¬ 
vations might be perfectly comparable. 
Before proceeding to mention the results, we state that the obser¬ 
vations to the temperature of 50° were carried out in an apparatus 
with mercury manometer, which had been exhausted with particular 
Na 3 S0 4 + L + G 
in m.m.Hg. 
50.6 
53.8 
56.8 
59.6 
83.6 
99.0 
114.0 
130.0 
681 
812 
1009 
1196 
124 8 
125.8 
129.8 
135.0 
140.8 
1617 
1833 
!) Wied. Ann. 24, 530 (1885). 
