844 Mr. R. T. Lattey on the Dielectric 



Table X. — Dielectric Constants o£ KCi Solutions. 



\ (metres) 342 45-5 45 - 5 45-5 45'5 45-5 



K 22-9 * 384 45-9 57'5 57*5 45-9 



Temp. (°C.) ... 15-4 15'4 10-6 16-8 16*0 11"4 



Normality -000755 "000755 "00151 '00755 '0151 '0151 



D for solution ... 8025 75-0 777 66-25 



D for water 81-95 81-95 83"65 81-45 



.Ratio 098 0-915 0'93 0-815 



A 147 121-5 101 79-5 72-7 91-5 



A (Kohlrausch) . 1216 1216 106-1 120'4 116-35 105-2 



(c) Copper-sulphate Solutions. 



\ was in all cases 45*5 metres and K = 57'5. 



Table XI. 



Temperature (° O.) 15-1 13'2 14-8 14-8 



Normality -00114 '00228 "00456 "0228 



D for solution 75-2 78"2 73'9 



D for water 81-08 8275 82-15 



Ratio 0-93 0-945 0'90 



A 89-8 73-7 67-0 417 



A (Kohlrausch) 915 84-5 76'5 55-35 



(d) Tttraethylammonium naphthalene - /3 - sulphonate 

 Solutions. 



A, and K as for copper-sulphate solutions. 

 Table XII. 



Temperature (° C.) 16-6 14 14-2 



Normality "002 "005 -010 



D for solution 76-3 690 



D for water 8T55 82-45 



Ratio 0-935 0-85 



A 38-8 32-5 . 32-8 



The agreement between the values obtained for the mole- 

 cular conductivity and those obtained by Kohlrausch at 

 smaller frequencies indicates that frequency has very little 

 influence on this quantity. In the case of the tetraethyl- 

 ammonium salt no data are available for comparison, but 



