58 



THE ROYAL SOCIETY OF CANADA 



Figure 8 is drawn for Tube 3 in which the density of filling is 

 such that the meniscus vanished at the bottom of the tube. Observa- 

 tions were made for both liquid and vapour sides for rising and falling 

 temperatures. One line serves equally well for all four sets of readings. 



o fjp r. Down r» 



2.00° 



DOWN t■l^<.^» *6î.l* 



Fig. 9. 



Liquid 1. 



Temp. Dec. 



•0355 

 •0353 

 •0368 

 •0365 

 •0365 

 •0395 

 •0425 

 •0509 

 •0510 

 •0520 

 •0440 

 •0383 

 •0360 

 •0348 

 ■0365 

 •0368 

 •0355 



Temp. Dec. 



Liquid 2 



