PROCEEDINGS OP THE AMERICAN ACADEMY 



TABLE II. 

 Light reflected when n is near unity, or equals 1 + dn. 



The most important application of Fresnel's formula is to the case 

 of glass, where n somewhat exceeds 1.5. Brewster calculated such a 

 tahle for n=: 1.525, which is published in Phil. Trans. 1830, p. 143. 

 A much more complete table is given below (Tables III., IV., and V.) 



TABLE IIL 

 Light reflected when n = 1.55. 



