H. KAMERLINGH ONNES and W. H. KEESOM. Contributions to the knowledge of the 

 j,-surface of VAN DER WAALS. XV. The case that one component is a gas 

 without cohesion with molecules that have extension. Limited miscibility of 

 two gases. Plate I. 



Fig. 1 



Fig. 2. 



(Ü 



Fig. 3. 



Fis:. 4. 



Fig. 5 



Proceedings Royal Acad. Amsterdam. Vol. IX. 



