This page has been validated.
ILLUSTRATIONS.
fig.
page.
1. | Polarisation Apparatus |
2 |
2. | The Radiator |
3 |
3. | The Spiral-spring receiver |
6 |
4. | Determination of index by single semi-cylinder |
22 |
5. | Method of total reflection by two semi-cylinders |
27 |
6. | Two positions of air-space for total reflection |
27 |
7. | Complete Apparatus for electric refraction |
28 |
8. | The Electric Refractometer |
39 |
9. | Section of two totally retracting Prisms |
45 |
10. | Transmission and reflection by double prism |
46 |
11. | Differential Galvanometer for variation of resistance |
52 |
12. | Section of two liquid semi-cylinders separated by air-film |
58 |
13. | Four positions for total reflection |
59 |
14. | The Spectrometer Circle |
60 |
15. | The Method of repetition |
61 |
16. | Mechanical Waves |
78 |
17. | Complete Apparatus for Electric Waves |
87 |
18. | Apparatus for Polarisation of Electric Ray |
91 |
19. | Determination of rotation of plane of polarisation |
105 |
20. | Jute elements, positive and negative |
109 |
21. | Paper disc for production of dark Cross |
113 |
22. | Holder for the disc |
113 |
23. | Curve showing electric reversal |
149 |
24. | Response curve for potassium exhibiting increase of resistance |
151 |
25. | Radio-molecular oscillation of Magnesium |
152 |
26. | 'Damped' molecular oscillation |
153 |
27. | 'Damped' oscillation curve for a positive substance |
154 |
28. | Response curve for Iron |
155 |
29. | Curve for Arsenic |
155 |
30. | Heat and mechanical vibration in hastening recovery of Iron receiver |
158 |
31. | Heat and mechanical vibration on arsenic receiver |
159 |
32. | Recorder for response to electric radiation |
169 |
33. | Evolution from non-recovering to self-recovering receiver |
171 |
34. | Self-recovering receiver exhibiting negative Touch |
172 |
35. | Record of Ag′ Receiver to single flash of radiation |
174 |
36. | Summated effect exhibited by Ag′ receiver |
176 |
37. | Fatigue and reversal |
180 |
38. | Reversal in Fe3O4 receiver under continuous radiation |
182 |
39. | Electromotive response of Mg receiver under electric radiation |
186 |
40. | Electromotive response of AgBr cell under light |
188 |