310 Tables 380, 381.— ROTATION OF PL-ME OF POLARIZED LIGHT. 



TABLE 380. — Tartaric Acid; Camphor; Santonin; Santonio Acid; Cane Sugan 



A few examples are here given showing the eftect of wave-Iengih on th* rotation of the plane of polarization. The 

 rotations are for a thickness of one decimeter of the solution. The examples are quoted from Laiidolt & B6i»- 

 stein's "Phys. Chem. Tab." The following symbols are used : — 



/r= number grams of the active substance in loo grams of the solution. 

 f= " " solvent " " " " 



g=i " " active " " cubic centimeter " 



Right-handed rotation is marked +, left-handed — . 



TABLE 381. — Sodinm Chlorate; Quartz. 



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

 the Fraunhofer lines. Angstrom's values for the ultra violet sun, and Cornu's values for the cadmium hnes. 



Smithsonian Tables. 



