152 DH. BREWSTER ON ACTION OF TRANSPARENT SURFACES UPON LIGHT 
Angle of Incidence 
on the 
First Surface. 
Angle of Refraction 
at First Surface, and 
Angle of Incidence 
on Second Surface. 
Inclination of Plane 
of Polarization of 
A C Fig. 3. 
Inclination of Plane 
of Polarization of 
C S Fig. 3. 
Inclination of Plane 
of Polarization of 
bs Fig. 3. 
o / 
O ! 
o / 
O / 
O / 
0 0 
0 0 
45 0 
45 0 
45 0 
32 0 
20 33 
45 34 
32 20 
32 51 
40 0 
25 10 
45 58 
24 12 
24 56 
45 0 
27 55 
46 17 
17 49 
18 38 
56 30 
33 30 
47 22 
0 0 
0 0 
67 0 
37 34 
48 57 
18 20 
20 50 
70 0 
38 30 
49 33 
23 34 
27 6 
75 0 
39 46 
50 45 
32 22 
37 48 
78 37 
40 29 
51 49 
38 10 
44 59 
79 0 
40 33 
51 56 
38 49 
45 46 
80 0 
40 42 
52 16 
40 27 
47 46 
83 0 
41 5 
53 21 
44 39 
53 40 
86 30 
41 23 
54 47 
50 58 
60 13 
90 0 
41 58 
56 29 
56 29 
66 19 
Allerly, December 3 1 a 2 , 1829 
