196 



Tables 206-207. 

 OPTICAL CONSTANTS OF METALS. 



TABLE 206. 



TABLE 207. —Reflecting Power of Metals. 



Coblentz, Bulletin Bureau of Standards, 2, p. 457, 1906, 7, p. 197, 191 1. The surfaces of some 

 of the samples were not perfect so that the corresponding values have less weight. The methods 

 for polishing the various metals are described in the original articles. 



Smithsonian Tables. 



