380 



PROCEEDINGS OF THE AMERICAN ACADEMY. 

 Liquid Ethyl Ether and Glycerine. 



20 40 00 80 100 120 140 100 180 200 220 240 



Figure 14. 



The last two tables show a discrepancy in the value of a not wholly 

 explained. It is probably due to two very large sources of error: 1st, 

 to the impossibility of determining d — d' at temperatures near the normal 

 critical temperature for the liquid-liquid case, and 2d, to the uncertainty 

 concerning the same quantities in the liquid-vapor case, as well as to the 

 fact that a for the latter case is not the value for a true saturated vapor 

 but rather for a superheated vapor. 



Figure 13 shows the capillary height plotted as a function of the 

 temperature, the dotted curves showing the height in millimeters when 



