16 



art 8.— s. nakamura. 



§5 In the experiment for Zn S0 4 , the angle a of the prism=44° 

 55' 35". The results are given in Tables Va — Vf. As n is not a 

 linear function of w, we have to reduce n to u in this case. In the 

 following; tables, the numbers in the column u are the number of 

 grammes of Zn S0 4 in 100 grammes of water. I have dispensed with 



calculating B , B l , and the areas Sj and Sj in an arbitrary unit 



were determined only, because the fact that the phenomena of diffusion 

 is fairly well represented by the equation (5), was made clear by the 

 experiments on jSTaCl, and because in the determination of k, a know- 

 ledge of S 3 and Sj is sufficient. 



Table V a . 



Time=lo. Feb. 16" 43 m ; temperature =1 2°. OC 



S pect, reading for the normal=358° 54' 30." 



S 1= 1073.5 



