ON OPTICAL ROTATORY DISPERSION. 
297 
Table VII.— 
Rotatory Dispersion of Potassium Tartrate in Aqueous Solution 
at 20° C. (continued). 
(h) Second Series .—32-68 gr. K 2 H 4 C 4 0 B .§H 2 0 in 100 gr. aqueous solution, 
or 40*255 gr. „ in 100 c.c. 
Density = 1*2318. 
Simple Formula. 
[M x ] = — 22 ' !)3 — 
L ' J X 2 -0'0068 
Lengtli of tube — 6 dm. 
Complex Formula 
1V1, = 
41'108 
X 2 —0"038 
18-886 
X 2 —0"06' 
A. 
a. 
[M] obs. 
[M] A 2 . 
[MJ. 
g 
i-1 
1 
i-1 
* 
[Ms]. 
[M]-[M 2 ], 
Cd 6438 
57-34 
55-79 
23-12 
56-25 
-0-46 
55-91 
-0-12 
Na 5893 
69-07 
67-20 
23-34 
67-50 
-0-30 
67-18 
+0-02 
Hg 5790 
71-50 
69-57 
23-32 
69-82 
-0-25 
69-68 
-0-11 
Cu 5782 
71-95 
70-01 
23-40 
70-01 
± 
69-88 
+0-13 
Hg 5769 
72-10 
70-15 
23-35 
70-34 
-0-19 
70-21 
-0-06 
Cu 5700 
74-05 
72-05 
23-41 
72-08 
-0-03 
71-98 
+0-07 
Hg 5461 
80-88 
78-69 
23-47 
78-69 
± 
78-69 
± 
Cu 5219 
89-00 
86-59 
23-59 
86-34 
+0-25 
86-46 
+0-13 
Cu 5154 
91-40 
88-93 
23-62 
88-58 
+0-35 
88-74 
+0-19 
Cu 5105 
93-15 
90-63 
23-62 
90-34 
+0-29 
90-52 
+0-11 
Cd 5086 
93-80 
91-26 
23-61 
91-04 
+0-22 
91-23 
+0-03 
Zn 4811 
105-65 
102-79 
23-79 
102-06 
+0-73 
102-34 
+0-45 
Cd 4800 
105-67 
102-81 
23-69 
102-55 
+0-26 
102-82 
-0-01 
Zn 4722 
109-75 
106-78 
23-81 
106-07 
+0-71 
106-34 
+0-44 
Cd 4678 
111-17 
108-68 
23-78 
108-14 
+0-54 
108-42 
+0-26 
Hg 4358 
128-70 
125-22 
23-78 
125-22 
125-22 
r 
Fe 4337 
130 
126-5 
23-79 
126-5 
± 
126-4 
-\~o-i 
Fe 4308 
132 
128-4 
23-84 
128-2 
+ 0-2 
128-1 
+ 0-3 
Fe 4271 
134 
130-4 
23-78 
130-6 
-0-2 
130-4 
± 
Fe 4251 
136 
132-3 
23-91 
131-8 
+ 0-5 
131-6 
+ 0-7 
2 T 
VOL. CCXXII.-A. 
