of Edinburgh, Session 1881-82. 
823 
Table II. 
A. 
B. 
C. 
D. 
E. 
NaCl 
20-95 
1-15711 
1-12322 
•03389 
2-011 
14-44 
1-10664 
1-08108 
•02556 
7-4 
1-05339 
1-03912 
•01427 
KC1 
19-5 
1-13225 
1-1067 
•02555 
1-977 
14-93 
1-09954 
1-0797 
•01984 
7-44 
1-04914 
1-0382 
•01094 
NaBr 
1-14714 
1* 
3-014 
14-92 
1-12473 
1-1107 
•01403 
11-57 
1-09567 
1-0838 
•01187 
KBr 
22-04 
1-17968 
1-1604 
•01928 
2-681 
14-37 
1-11317 
1-0990 
•01417 
8-96 
1-06702 
1-0596 
•00742 
Nal 
27-5 
1-2649 
1-2427 
•0222 
3-45 
18-54 
1-16626 
1-1517 
•01456 
12-75 
1-11138 
1-0996 
•01178 
KI 
23-09 
1-19977 
1-1840 
•01577 
3-059 
16-00 
1-12929 
1-1207 
•00859 
7'81 
1-06127 
1-0555 
•00577 
A = name of salt and specific gravity in the solid state. 
£ = percentage of salt in solution of specific gravity in C. 
C = observed specific gravity of solution. 
D = theoretical specific gravity. 
E = C-D. 
The following points are to he noted : — 
1. That in each case the observed specific gravity is greater than 
the calculated, showing that contraction has taken place ; 
2. That the difference C - D in E increases as the percentage of 
salt increases ; but, 
3. That the first portions of salt added produce a relatively 
greater contraction than the subsequent portions. 
Nothing more can be learned from the table in the above form. 
Experimenters are only just beginning to realise the fact that salt 
