|
Representing the angles of incidence and refraction.
|
44
|
|
4.
|
The refraction of the atmosphere.
|
51
|
|
5.
|
Various forms of lenses.
|
65
|
|
6,
|
7, 8. Parallel, converging, and diverging rays.
|
66
|
|
9,
|
10, 11. Passage of parallel, diverging, and converging rays through convex lenses.
|
67
|
|
12.
|
Passage of parallel rays through concave lenses.
|
69
|
|
13.
|
Images formed by convex lenses.
|
71
|
|
14.
|
Angle of incidence and reflection.
|
83
|
|
15.
|
Images as reflected from a plane mirror.
|
84
|
|
16.
|
Illustrative of reflections from a plane mirror.
|
85
|
|
17.
|
Shewing how the image in a plane mirror is twice the length of the object.
|
86
|
|
18.
|
Reflection from concave mirrors.
|
87
|
|
19.
|
Reflection from convex mirrors.
|
89
|
|
20.
|
Parallel rays as reflected from concave mirrors.
|
91
|
|
21.
|
Diverging rays as reflected from concave mirrors.
|
91
|
|
22.
|
Images formed before concave mirrors.
|
93
|
|
23.
|
Images formed behind concave mirrors.
|
96
|
|
24.
|
Illustrating the magnifying power of concave mirrors.
|
97
|
|
25.
|
Inverted images formed in the front of concave mirrors.
|
98
|
|
26.
|
Illustrative of deceptions produced by concave mirrors.
|
100
|
|
27,
|
28. Experiment with a bottle half filled with water.
|
101
|
|
29.
|
Effect of extraordinary refraction on ships at sea.
|
109
|
|
30.
|
Experiment for illustrating the causes of uncommon refraction.
|
117
|
|
31.
|
Prismatic spectrum.
|
127
|
|
32.
|
Different foci of coloured rays in convex lenses.
|
129
|
|
33.
|
Experiment to show the different foci of red and violet rays.
|
129
|
|
34.
|
Illustrative of the prismatic colours.
|
136
|
|
35.
|
Explanatory of refraction and reflection from drops of rain.
|
147
|
|
36.
|
Explanatory of the rainbow.
|
149
|
|
37.
|
Images of objects formed in a dark chamber.
|
187
|
|
38.
|
The revolving Camera Obscura.
|
194
|
|
39,
|
40. The portable Camera Obscura.
|
195, 196
|
|
40,*
|
41, 42. Illustrative of the angle of vision, and the apparent magnitude of objects.
|
206, 207, 208
|
|
43.
|
The Galilean telescope.
|
215
|
44.
|
