374 DR. MEYER WILDERMAN ON THE CHEMICAL STATICS AND DYNAMICS OE 
on). On the 20th the influence of temperature upon the same Ag-BrAg plates in a 
decinormal LiBr solution was investigated. Experimental data, see Table V. The 
E.M.F. in the dark was in Nl and N2 = 1*9 centims. to the right (200 ohms shunt), 
in N3, N4, N5 = 3 millims. to the left (200 ohms shunt). The deflections obtained 
(200 ohms shunt of galvanometer) were : 
In Nl = 126 millims., in N2 = 119 + 6 = 125 millims. at 23° C. (at 1.15 to 
1.40 p.m.). 
In N3 = 117*5 millims., in N4 = 108 + 17 = 125 millims., in N5 = 107 + 17 = 125 
millims. at 3° C. (at 5 p.m.). 
These results show again that the variation of the E.M.F. with temperature can 
only be small. 
(y) The System Ag-BrAg Plates in 0T normal NaBr Solution ( Plate Ml9), Table V. 
Seven months later, on February 15, 1905, again an experiment was instituted 
with 0*1 normal NaBr solution, but for a smaller temperature interval, so that one side 
of each plate could again be covered with shellac and paraffin. The Ag-BrAg plates 
were not the same as before. The maximum deflections obtained (no shunt used 
with the galvanometer) : 
In Nl : 85 millims. at 1 ° C. ; in N2 : 87*5 millims. at 2T *5 C. 
The results therefore similar to those obtained before with KBr and LiBr solutions. 
YI. On the E.M.F.'s obtained ivith the same Ag-BrAg plates in different Bromides. 
Influence of the Cation in Cells Reversible in respect of the Anion (Table VI.). 
The Ag-BrAg plates covered on all sides with BrAg are those used from July 8, 
1904, till July 13 with a decinormal KBr solution, from July 15 till July 19 with 
solutions of HBr, and on the 20th with the LiBr solutions. In these experiments 
the same plate was always exposed to light, but now I turned the plates, so that the 
plate which previously always was in the dark was now exposed to light, while the 
plate which was always exposed to light was now kept in the dark. 
(a) Experiments of July 25, 1904 :— 
(a) The decinormal LiBr solution from July 20 was now used. The E.M.F. in 
the dark = 0 millims. (200 ohms shunt) to the right. Intensity of acetylene = 46*5 
millims. Calibration of Nalder N2 = 16*0 centims., of Nalder Nl = 16*0 centims. 
The deflections obtained (with 1000 ohms shunt of galvanometer) were : In Nl = 
116 millims. (deduction not complete 2 millims.), in N2 = 117 millims. (deduction 
complete), average = 116*5 (at 12°*5 C. and 1.15 p.m.). 
