328 



valuable confirmation of the reality of the assumption made as to the 

 nature of the demarcation source of the nerve. 



Taking the simplest expression for the value of the E.M.F. of such a 

 cell, in which there are two solutions of different concentrations N and 

 n of the same electrolyte at the same temperature, 



E = Klog-. 

 n 



If in such a cell the solution of concentration "N" is retained con- 

 stant, whereas the solution of concentration "n" is given different 

 values, 71 1, n. 2 , 7i 3 ...... &c., 



and E, = Elog^x *-. 



i log N/n 



If X is constant, and also if N/n the original relation of the two 

 solutions is treated as a constant, we have 



En, = E.fc.log* 2 , 



1 



and this is the relation found existing between the value of the demar- 

 cation source of the nerve before (E) and after (E Bl ) the immersion of 

 the nerve in a solution of concentration n\. 



November 15, 1900. 

 The LORD LISTER, F.R.C.S., D.C.L., President, in the Chair. 



The Right Hon. Sir Ford North, Professor J. Bretland Farmer, 

 Dr. Patrick Manson, and Professor James Walker were admitted into 

 the Society. 



A List of the Presents received was laid on the table, and thanks 

 ordered for them. 



In pursuance of the Statutes, notice of the ensuing Anniversary 

 Meeting was given from the Chair. 



Professor J. D. Everett, Dr. J. H. Gladstone, and Dr. R. H. Scott 

 were by ballot elected Auditors of the Treasurer's accounts on the part 

 of the Society. 



The following Papers received during the Recess, and published or 



