1230 
Observed Rotation | Molar Rotation: > 10—! 
Wave-length, _ 
7 | ~ Mean value: 
in A. U. Dextrogyra- | Laevogyra- Dextrogyra- Laevogyra- | 
tory salt tory salt tory salt tory salt 
6600 + 0°39 — | + 2114 = 21194 
6425 0.50 — 0°83 271.1 216°1 | 213.6 
6265 0.67 0.61 363.2 352.1 | 357.1 
6100 0.86 0.82 466.2 473.3 469.7 
5910 1.08 1.06 585.5 611.9 598.7 
5760 1.45 1.32 786.1 762.0 | 774.0 
5595 1.93 1.90 1046.0 1097.0 | 1072.0 
5420 2.60 2:58 1409.0 1460.0 1435.0 
5260 | SNE — | 1843.0 = 1843.0 
BOBS np wle RO Fd = [> 2158.05] — 2158.0 
VIE and VIII. Dewvtro- and Laevogyratory Triethylenediamine- 
Cobalti- Rhodanide. 
The dextrogyratory solution contained 0.2065 gram of the salt 
in 30.20 grams of water; the laevogyratory in the same way : 0.2455 
gram in 30.15 grams of water. For wave-lengths greater than 6600 
A.U. and smaller than 5260 A.U., the measurements with the polari- 
meter were no more reliable. 
| Observed Rotation ' Molar Rotation: 10-1! 
Wave-length | | 
| a EDE Ca ate ; Mean value: 
in A. U. Dextrogyra- | Laevogyra- | Dextrogyra- | Laevogyra- 
| tory salt tory salt | tory salt tory salt 
6425 +054 | —o76 | 41643 | — 19494 | + 1793 
6265 0.81 12 246.5 286.6 266.6 
6100 1.40 1.47 | 426.0 | 376.1 401.1 
5910 1.56 1.98 474.7 506.6 490.7 
5760 1.80 2.60 541.1 | 665.2 616.5 
5595 2.18 Sade 663.4 908.3 | 781.3 
5420 = 5.20 = | 1330.0 1330.0 
