56 



Mr. H. H. Poole on the '/'hernial Conductivity 



in chronological order. The value of W is also given, 

 as it is possible that an apparent variation of K with W 

 might occur. No such effect is noticeable in the case of 

 the limestone. The results are plotted in fig. 4, and it is 

















i°jp , 













o 

















o 



1° 

















I 





a 



Q 



in 



e 



s 











J 





h3 



1 













/ 





I 













r / 





ho 











/ V 



o / 

















0/ 



1 















/o 















°/ 



/ 











o/ 





/ 



o 







S 





? 









^3 



at once apparent thai they may be divided into three -tics. 

 The firsl 7 results Lie fairly well along the upper curve, 

 whose equation is 



K=(3-835h 2-59< -frown*)* 10~ S , 



