A72 Mr. R. Hosking on the Electrical 
Hight solutions were made up, and these will be refaaeal 
to in the following pages as solutions 1, 2, 3,... 8. 
The following table will give an idea of their composition 
and properties at 15° C.; where density means specific 
em .-equivalent 











ravity 15/4, concentration means * =n, and 
8 y 15/4, co litre 
normal solution =42°48 oms. per litre. 
eae. peut Awa | - | 
Solution.} Density. rae as Viscosity.| Fluidity. nt C/F. 
Water...| 0°9992 | ...... 01143 | 87-5 1276x106 92°5 1:057 
die eee 09992 | 0:00645| -01144 87°4 242700 871 0:997 
ee: SO 1:0016 | 071080 | -01152 86°8 17210: 9.) fess 0°886 
ieee 1:0115 | 0:5203 | °01220 82:0 4000 65°6 0°800 
Aerie J 1:0234 | 1:0125 | -01308 76:5 2281 59°1 0-772 
he cance 1:0665 | 2:937 01718 58°2 1055 44-0 0°756 
Grier e 11107 | 5-02 02331 | 42-7 S87 31:0 | o719 
(ee 11611 | 7:36 ‘03640 hes, 9538 196 |) Oris 
Saetences eIST9: 1071 | “00805 12°4 1440 88 | 0-710 
| | 

Viscosity and fluidity are given in absolute measure. 
Resistance is given in ohms = R, 
and 

1 wd —gt) 
sp. mol. cond. = == se We 10se 5. BY 
where w is the capacity of the cell and (1—gt) is the tem- 
perature correction for the expansion of the glass. 
Instead of Water we may write Solution of infinite dilution. 
In resistances of 1 and 2, conductivity of the water is 
allowed for. 
The temperature of the bath, while readings were being 
taken, was generally within one or two tenths ‘of a degree of 
the even temperatur es 0°,. 10°, 20°, &e., &e. 3. soptheenm 
calculating the values of the viscosity, resistance, and density 
at these even temperatures from their values at the actual 
temperatures observed, the amount of error introduced was 
extremely small. 
It is the smoothed values, obtained in this way, which are 
collected in the following tables, A, B, and C, ‘and we may 
take the actual observations of solution 5 as typical of all, 
and reproduce them here also. 
