1904.] 



Cotton ly Water and ly Water Vapour. 



241 



The temperature curve of Experiment 8 is shown in fig. 36, where 

 the companion curve (a) represents a water immersion experiment 

 under otherwise similar conditions. 



In fig. 4, the temperature curves are shown as obtained by 

 immersing the dry cotton in air saturated at (a) 25, (b) 18, (c) 12, so 

 as to test the effect of the greater vapour pressure. The following table 

 summarises these additional tests. 



Table IV. Experiments Supplementary to Series IV, and with same 



Apparatus. 



Experiment 3 of Series IV included for comparison. No previous 



moisture. 



Table V. Summary of Series V. 



0'90 gramme of cotton covering thermometer D. Saturated air 

 immersion with improved arrangements. Bath temperature 25 '0. 

 T = about 5J minutes. No previous moisture. For 6 and m curves, 

 see fig. 5. 



(calcd.). 



14-5 



26-8 



27-3 



39-3 



39-3 



54-5 



54-8 



56-2 



71-0 



68-7 



70-8 



81-3 



90-6 



101-4 



101-2 



104-2 



112-0 



133-2 



158-7 



183-3 



