484 SLlectrical Conductivity and Fluidity of Solutions. 
In the present paper I have confined myself to the tem- 
perature variations of fluidity and conductivity. The fluidity- 
concentration and conductivity-concentration isothermals are 
also interesting, but I shall not discuss them here. There 
are indications, however, that all the isothermals will cut the 
axis of zero conductivity and fluidity at the same point 
representing concentrations of about 16 normal. I intend 
making further experiments on strong solutions. to test this 
point. 




Fig. 4. 
500 
250 
! 
x 200 
ae i 
CONnDUCTIVITY-CONCENVTVPATION /SOTHERMALS = 
L/CL SOLUTIONS S 
g 
BS 
> 150 
we A S os 
S 
a 
Gy 
1 
10Q 









The curves connecting the variables Ff and n, and C and n, 
are given in figs. 3 and 4 respectively, each curve being the 
isothermal for the temperature indicated on it. 
I wish, in conclusion, to thank Professor Thomson for the 
interest he has taken in this investigation. 
Cavendish Laboratory, 
March 14, 1904, 
