148 



MR J. Y. BUCHANAN ON THE 







Residues. 







Grm.-mol. Salt 



per 1000 grms, 



Water. 







Residues. 





K. 



Rb. 



Gs. 



KO3. 



RbOj. 



CSO3. 



01. 



Br. 



I. 



CIO3. 



BrOj. 



1O3. 



Places occupied by Residues. 



m. 



Places occupied by Residues. 







Hexagon m [CI]. 













Hexagon m [K]. 





1 



2 



3 



4 



5 



6 



1/64 



1 



2 



6 



4 



5 



3 



1 



2 



3 



4 



5 



6 



1/128 



1 



2 



6 



4 



5 



3 



1 



2 



3 



4 



5 



6 



1/256 



1 



3 



5 



4 



6 



2 



2 



3 



4 



1 



5 



6 



1/512 



3 



4 



5 



2 



6 



1 







Hexagon wi [Bp]. 











Hexagon m [Rb]. 





1 



2 



4 



3 



5 



6 



1/64 



1 



2 



6 5 



4 



3 



1 



2 



4 



3 



5 



6 



1/128 



1 



2 



6 4 



5 



3 



1 



4 



2 



5 



3 



6 



1/256 



1 



2 



6 5 



4 



3 



1 



4 



2 



5 



3 



6 



1/512 



2 



3 



6 5 



4 



1 







Hexagon m [I]. 











Hexagon m [Cs]. 



3 



5 



6 



1 



2 



4 



1/64 



1 



2 



5 



6 



4 



3 



3 



4 



6 



1 



2 



5 



1/128 



1 



2 



6 



5 



3 



4 



2 



4 



6 



1 



3 



5 



1/256 



1 



2 



5 



6 



3 



4 



3 



1 



4 



6 



1 



2 



5 



1/512 



1 



2 



6 



5 



3 



4 



Section X. — Experimental Observations on the Displacement 

 OF Solutions of Sodium Chloride. 



§ 67. Although chloride of sodium is not a member of either of the enneads which 

 form the principal material of this research, its importance in nature justifies its 

 inclusion in it. 



The observations made at 1.5'0° C. and recorded in Table No. 26, Class A, were not 

 sufficient. A complete series of observations of specific gravity in which the values 

 of m formed a geometric series, descending from 1 to 1/512, was made at 19*50° C. 



Besides this, two arithmetic series were included, in one of which the common 

 difference in values of m was 1/128, and in the other 1/64. 



In the first of these two series there were eight solutions, in which m ^ i/128, 2/128, 

 .3/128, 4/128, 5/128, 6/128, 7/128, 8/128, respectively. 



The second series proceeded by a common difference of 1/64 from 1/64 to 8/64, 

 the first four of this series being included in the first arithmetic series, namely, 2/128, 

 4/128, 6/128, 8/128. 



