Chemistry and Physics. 267 
bulb descends toward the surface the temperature rises but the bulb 
dries and this drying takes place only in the layers of vapor immedi- 
volume, and thus at a certain height above the surface of the liquid 
has only the temperature which it would have if coming from pure 
water. As it was found impossible to determine the temperature of the 
ebullition of saline solutions so as to deduce from these observations 
certain results, the author directed his attention to the elasti forces 
vapors w 
an Ma 
vacuo. The apparatus employed was the same as that used by the au- 
. thor in his former researches on the tension of the vapor of water and 
consisted of a vessel of 600 or 700 C. C. capacity communicating with 
@ mercurial manometer. The whole apparatus was placed in a large 
Vessel — with water kept at a constant temperature. ‘The vessel was 
e 
ent temperatures. A small glass bulb previously filled with the liquid 
e of the vapor 
im the air, the third the elastic force of the vapor in vacuo, and the fourth 
the difference between these two tensions, ” 
mm, 
mn 4) ‘ 
94232566 1109 29710 38002 8:1 
1442, 84015 845°3 L/S: Se RS. 
Bata 1937 414 23° 
43950 1456 61 1222 31130 3150 37 
» Precisely similar results were obtained with a different form of ap- 
Paratus, with different vapors in air, and with the vapor of ether in dif- 
feren, gases. With this second form of apparatus the author also stud- 
Sure of the atmosphere which 
‘My of liquid in : 
