ROTATION OF PLANE OF POLARIZED LIGHT. 



Table 199. 



A few examples are here given showmc the effect of wave-length on the rotation of the plane of polnri/ation. The 

 rotations are for a thickness of one decimetre of the suiiitiiui. The examples are quoted from Landult & Uurn- 

 stciu's " Phys. Cheni. Tab." The loUowiiij; symbols arc used : — 



/ = number grammes of the active substance in loo grammes of the solution. 

 c= " " solvent " " " " 



9 = " " active " " cubic centimetre " 



Right-handed rotation is marked -|-i left-handed — . 



ROTATION OF PLANE OF POLARIZED LIGHT. 



Table 200. 



* The paper is quoted from a paper by Ketteler in " Wied. Ann." vol. 21, p. 444. The wave-lengths are for 

 the Fraunhofer lines. Angstroms values for the ultra violet sun, and Comu's values for the cadmium lines. 



Smithsonian Tables. 



