138 Proceedings of Royal Society of Edinburgh. [mar. 21, 
As a rule, samples were taken for analysis at intervals of 0°*4 C. 
Tlie results for three classes of salt in dilute solutions are arranged in 
Tables IV., V., and VI. 
Table IV . — Giving the percentage of Chlorine in Solutions of various 
Chlorides in which Ice melts at given Temperatures. 
o a5 
Chloride in Solution. 
£ s 
2* *3 
HC1 
pSTaCl 
KC1 
(Sea-Water.) 
MgCl 2 
CaCl 2 
BaCl 2 
1 a 
E-"g 
Per cent. Chlorine in Solution. 
° c. 
-3.5 
3*06 
3-30 
• 0 • 
• • • 
4-12 
• • • 
-3-0 
2-68 
3-02 
3-00 
• • « 
3-62 
3-70 
-2*5 
2-28 
2-53 
2-50 
• • • 
3-12 
3*20 
-2-0 
1-85 
2-02 
2-00 
• • • 
2'62 
2-70 
2-72 
-1-5 
• . 0 
1-50 
1*50 
1-500 
1-19 
2-15 
2*10 
-1-0 
• • • 
1-02 
1-02 
1 *034 
1-51 
1*50 
1-47 
-0-5 
... 
0-50 
0-52 
0-588 
0-87 
... 
... 
Table V . — Giving percentage of Potassium in Solutions of various 
Potassium Salts in which Ice melts at given Temperatures. 
Temperature 
of 
melting Ice. 
Salt in Solution. 
KC1 
KI 
rCI’M 
2 
KOH. 
Per cent. K In Solution. 
° c . 
-3-0 
3-29 
3-02 
3-15 
e • • 
-2*5 
2-79 
2-59 
2-68 
2-60 
-2-0 
2-28 
2-13 
2-17 
2-08 
-1*5 
1-74 
1-63 
1-66 
1-57 
-1-0 
1-18 
1*13 
1-12 
• • • 
-0-5 
0-59 
0-60 
0-57 
... 
Table VI . — Giving percentage of Hydrogen in Solutions of various 
Hydrogen Salts in which Ice melts at given Temperatures. 
Temperature 
of 
melting Ice. 
Salt in Solution. 
h 2 so 4 
|HC1 
hno 3 
HKO 
Per cent. H in Solution. 
;° c . 
- 3-0 
0-144 
0-076 
0*077 
, , , 
- 2*5 
0-119 
0*065 
0-065 
0*066 
- 2-0 
0-097 
0-052 
0-052 
0-053 
- 1-5 
0-073 
,, 
0-042 
0-041 
- 1-0 
0-048 
... 
0*032 
... 
