SOMK MKl;< ! l;Y VPANDAKDS OF KKSlSTANCE, KTC 



1 I 1 



.r =s KU -1)7 I 7!)t5, ft = 0-!717!><;, and h = ()-<J7l7U6/8, and finally 

 i = 85553 X 10-", 1> = 100286 X ICT 11 , and .r = 1875 X 10-". Whence 



Il r = !{ [I -f 0-0008803GT + 0-000001030U4T*]. 



This equation represents the change of resistance with temperature of a mercury 

 standard, the column of mercury l>eing contained in a Verre dur glass tube, the limits 

 of temperature In-ing C. and 24 C. 



TAKI.K XIV. Standard M. VeiTe dur Glass. 



Calculated Observed values. 

 M r = M + -00085553,1 + -000001 00286T 2 . 



k.-n aft.-r tin- *tnUr>l liwl been rained to the temperature 24 C. 

 t Due to x being Uken as - 1)00002. 



