of Superheated Vapours, 



413 



Table XVII. 



W a =719-6. W=759. 



R=1709'13. 



c=l-656. 











Vapour- 



Air- 





Vapour- 



/. 



H. 



H corrected. 



W r 



volume. 

 v. 



volume. 

 V. 



p. 



pressure. 





millims. 















70-8 



+ 10-3 



covered. 











millims. 



717 



13 05 



J" without "1 

 \ a breath. J 



41018 



305-4 



367'5 



1431-88 



1616 



775 



1305 



41018 



305 



3672 



1430-97 



1644 



83-6 



13-45 



13-4 



409-6 



305-3 



366-4 



1435-59 



1677 



84 



13-35 



13-4 



409-6 











895 



135 





409-44 



305-1 



365-9 



1436-49 



1706 



961 



139 





408-77 



305-4 



364-9 



1447-93 



1743 



Table XVIII. 









W 2 =669. W=724. E = 1525- 



47. C = 



= 1-525 



• 



83-6 



+76-8 



/strongly 

 \ covered. 













844 



78-6 





306 



359-7 



246 



2309-63 



2295 



84-9 



78-6 





306 











87-6 



78-55 



78-6 



306 











895 



78-6 





306 



3595 



245-7 



2309-97 



2329 



90-8 



78-6 





305 



359-4 



245-6 



2309-95 



2338 



96-8 



78-6 





306 











973 



78-6 





306 



359-2 



245-2 



2310-95 



2382 



Table XIX. 









W 2 = 425. W=487. R = 874-« 



93. C = 



= 0*938 









C strongly 













88 



+73-7 



j covered 

 at the top. 













89 



76-75 





193-45 



229-3 



127-6 



1620-89 



2559 



91-2 



76-8 





193-4 



229-3 



127-5 



1621-86 



2576 



98 



771 





19312 



229-46 



126-92 



1629-48 



2635 





The preceding Tables show that in the individual series of ob- 

 servations the vapour-volumes were approximately constant. 

 Heated in these constant spaces, the vapour shows for the lower 

 pressures, up to about 300 millims., constant values of <£, while 

 for higher pressures </> increases in a slight degree with rising 

 temperature; but in these cases the augmentation of <f) is de- 

 cidedly spread uniformly over the whole interval of the set of 

 observations, and is by no means more prominent in the first 

 degrees of the superheating. In several series it is evident that 

 immediately from still observed saturation onwards, only just 



