E. H. J. CUNAEUS: The determination of the refractivity as a method for the investigation of the composition of co-existing phases in mixtures of Acetone and Ether. 
150 
100) 
— } i— —}—_}_ } } + 
50 — | L_ 
— } — = + EN nn nn mm }— | = 
| 
= | 2 | 
| | 
—_ L | LX 
= J 
o 0,1 0,1 0,3 0,4 os 0,6 0,7 0,8 0,9 “ 
Hig. 1 Fig. 2. Fig. 3. Vig. 4. 
Proceedings Royal Acad. Amsterdam. Vol, IL 
