296 
MESSES. THOMAS MARTIN LOWRY AND PERCY CORLETT AUSTIN 
Table VII.—Rotatory Dispersion of Potassium Tartrate in Aqueous Solution 
at 20° C. 
(a) First jSeries. —33-60 gr. K 2 H 4 C 4 0 e .-|H 2 0 in 100 gr. aqueous solution, 
or 41-647 gr. „ in 100 c.c. 
Density = 1-2395. 
Length of tube = 6 dm. 
Simple Formula. 
Complex Formula. 
23*225 
X 2 —0*0065' 
[MJ = 
41*75 
X 2 -0*038 
19*255 
X 2 —0*06' 
A. 
CC. 
[M] obs. 
[M] A 2 . 
[Mi]. 
[M]—[MJ. 
[M,]. 
[M]-[M 2 ], 
Li 6708 
54-66 
51-92 
23-36 
52-37 
-0-45 
51-96 
-0-04 
Cd 6438 
59-49 
56-51 
23-42 
56-93 
-0-42 
56-58 
-0-07 
Na 5893 
71-55 
67-96 
23-60 
68-15 
-0-19 
67-96 
Hg 5790 
74-33 
70-60 
23-67 
70-65 
-0-05 
70-50 
+0-10 
Cu 5782 
74-49 
70-75 
23-65 
70-85 
-0-10 
70-71 
+0-04 
Hg 5769 
74-77 
71-02 
23-64 
71-17 
-0-15 
71-03 
-0-01 
Cu 5700 
76-76 
72-91 
23-69 
72-94 
-0-03 
72-83 
+0-08 
Hg 5461 
83-81 
79-61 
23-74 
79-61 
± 
79-61 
i 
Cu 5219 
92-28 
87-65 
23-87 5 
87-35 
+0-30 
87-47 
+0-18 
Cu 5154 
94-74 
89-91 
23-90 5 
89-62 
+0-29 
89-77 
+0-14 
Cu 5105 
96-50 
91-66 
23-89 
91-40 
+0-26 
91-57 
+0-09 
Cd 5086 
97-26 
92-39 
23-90 
92-10 
+0-29 
92-28 
+0-11 
Zn 4811 
109-20 
103-72 
24-01 
103-24 
+0-48 
103-51 
+0-21 
Cd 4800 
109-55 
104-06 
23-97 5 
103-73 
+0-33 
104-00 
+0-06 
Zn 4722 
113-50 
107-81 
24-04 
107-29 
+0-52 
107-55 
+0-26 
Zn 4680 
115-25 
109-50 
23-98 
109-29 
+0-21 
109-55 
-0-05 
Cd 4678 
115-42 
109-63 
23-99 
109-38 
+0-25 
109-65 
-0-02 
Hg 4358 
133-30 
126-61 
24-05 
126-61 
± 
126-61 
4 - 
Fe 4326 
136 
129-2 
24-12 
128-6 
+ 0-6 
128-5 
+0-7 
Fe 4187 
145 
137-7 
24-15 
137-6 
+ o-i 
137-1 
+0-6 
Fe 4110 
150 
142-5 
24-07 
143-0 
-0-5 
142-1 
+0-4 
Fe 4046 
155 
147-2 
24-10 
147-7 
-( 0-5 
146-5 
+0-7 
