198 Messrs. J. P. Kuenen and W. G. Robson on 

 Table VIII.— Ethane and Propyl Alcohol (I.). 



t. 



P- 





38-67 



C. 52-78 



Three phases. 



3875 



52-85 



, 



38-95 



5312 





39-95 



5409 





41-7 



C. 56 01 





3955 



54-22 



^ By compression after the vapour 



39-75 



54 47 



has disappeared, the quantity 



40-35 



55-39 



! of liquid at the bottom dimi- 

 | nishes and disappears at these 



41-75 



5743 



42-2 



58-22 



pressures ; retrograde con- 



4335 



59 81 



J densation. 



Table IX. — Ethane and more Propyl Alcohol (II.). 



2>b. 



14-96 



32-76 



318 



4617 



3196 



46-35 



3805 



52-25 



38-75 



53-03 



38-85 



5309 



39-65 



53-91 



38-82 



53-14 



38-95 



53-27 



39-65 



54-29 



40-55 



55-70 



43-35 



59-76 



43-47 



59 90 



49-75 



68-83 



5595 



75-76 



82-1 



103-2 



914 



106 



Vapour disappears. Two phases 



Normal 

 Condensation, 



Vapour disappears. Three phases 1 -^ , 



" | Condensation 



>i ii J 



By compression, after the disappearance of the 

 vapour, the liquids approach each other in com- 

 position and mix, displaying critical phenomena 

 at these pressures. 



1 Lower liquid disappears by pressure ; retrograde 

 J condensation. 



of the three-phase curve ; the plait-point curve C 2 C 3 of the 

 plait-point P x starting at C 2 , the critical point of propyl alcohol 

 (not shown), and after a long detour (not completely inves- 

 tigated) reaching C 3 , the beginning of the three-phase curve. 

 It is impossible to give a full account of the phenomena 

 which occur at different temperatures with different quantities 

 of alcohol. They may all be read directly from the v-x or p-t 

 diagrams. One point, however, may be specially mentioned, 



