( 253 ) 
The second part of the investigation consisted of the determination 
of the melting-point line under the vapour pressure, of which fig. 3 
gives the examined region. 
The ice-line ABC has already long been known from the investi¬ 
gations of Raoult 1 2 3 ), Loomis ’), dk Coppet *), and Loewel 4 ), while 
1 ) Zeitschr. f. physik. Ghem. 2, 489 (1888). 
2 ) Wied. Ann. 57, 503 (1896). 
3 ) Ann. de Ghim. et phys. [4] 25, 589 (1872) and Zeitschr. f. physik. Ghem. 
82, 289. 
*) Ann. de Ghim et phys. [3] 49, 50 (1857). 
