THE POLARIZATION OF LIGHT BY REFRACTION. 
14.3 
Angles of 
Incidence, 
i. 
Angles of 
Refraction, 
Inclination of 
Plane of Pola- 
rization of the 
Reflected Light, 
Inclination of 
Plane of Polari - 
zation of the Re- 
fracted Light, 
<p. 
Quantity 
of Light 
Reflected, 
R. 
Quantity of 
Light trans- 
mitted, 
1 - R. 
Quantity of 1 
Light Pola- 
rized, 
Q. 
o 
/ 
o 
o 
, 
O 
, 
0 
0 
0 
0 
45 
0 
45 
0 
43.23 
956.77 
0 . 
2 
0 
1 
18-1- 
44 
57 
45 
0.7 
43.26 
956.74 
0.07 
10 
0 
6 
32 
43 
51 
45 
3 
43.39 
956.61 
1.73 
20 
0 
12 
58 
40 
13 
45 
13 
43.41 
956.59 
7.22 
25 
0 
16 
5 
37 
21 
45 
21 
43.64 
956.36 
11.6 
30 
0 
19 
H 
33 
40 
45 
31 
44.78 
955.22 
17-24 
35 
0 
22 
6 
29 
8 
45 
44 
46.33 
953.67 
24.4 
40 
0 
24 
56 
23 
41 
46 
0 
49.10 
950.90 
32.2 
45 
0 
27 
374 
17 
22| 
46 
20 
53.66 
946.33 
44.0 
50 
0 
30 
9 
10 
18 
46 
45 
61.36 
938.64 
57.4 
56 
45 
33 
15 
0 
0 
47 
29 
79.5 
920.5 
79-5 
60 
0 
34 
36 
5 
H 
47 
541 
93.31 
906.69 
91.6 
65 
0 
36 
28 
12 
45 
48 
42 
124.86 
875.14 
112.7 
70 
0 
38 
2 
18 
32 
49 
28 
162.67 
837-33 
129.8 
75 
0 
39 
18 
26 
52 
50 
55 
257.56 
742.44 
152.3 
78 
0 
39 
54 
30 
44 
51 
48 
329-95 
670.05 
157.6 
78 
7 
39 
55 
30 
53 
51 
50 
333.20 
666.80 
157-65 
79 
0 
40 
4 
31 
59 
52 
7 
359-27 
640.73 
157-6 
80 
40 
40 
13 
33 
13 
52 
27\ 
391.7 
608.3 
156.7 
82 
4 
40 
35 
36 
22 
53 
26-v 
499.44 
500.56 
145.4 
84 
0 
40 
42 
38 
2 
53 
57 
560.32 
439.68 
134.93 
85 
0 
40 
47 
39 
12 
54 
22 
616.28 
383.72 
123.7 
85 
50; 
40 
501 
40 
12 
54 
44 
666.44 
333.56 
111.11 
86 
0 
40 
51 
40 
22-V 
54 
48 
676.26 
323.74 
108.67 
87 
0 
40 
54 
41 
32 
55 
16 
744.11 
255.89 
89.8 
88 
0 
40 
574 
41 
23 
55 
43 
819-9 
180.1 
65.9 
89 
0 
40 
58 
43 
51 
56 
14 
904.81 
95.19 
36.3 
90 
0 
40 
58 
45 
0 
56 
29 
1000. 
0. 
0. 
It is obvious from a consideration of the principle of the formula for reflected 
light, that the quantity of polarized light is nothing at 0° because the force 
which polarizes it is there a minimum. At the maximum polarizing angle, Q 
is only 79° because the glass is incapable of reflecting more light at that angle, 
otherwise more would have been polarized. The value of Q then rises to its 
maximum at 78° 7', and descends to its minimum at 90° ; but the polarizing 
force has not increased from 56° 45' to 78° 7', as the value of <p' shows. It is 
only the quantity of reflected light that has increased, which occasions a 
greater quantity of light to disappear from the extraordinary image of the 
analysing rhomb. 
The case however is different with the refracted light. The value of Q' 
has one minimum at 0° and another at 90°, while its maximum is at 78° 7', 
