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| Figs. 1 to 8. | Types from nature, illustratingdevelopment of a solar system from the attenuated matter of space | [Frontispiece]. |
| Fig. 9. | A typical sun-spot | [57] |
| Fig. 10. | Structure of the sun, analyticalillustration of | [60] |
| Fig. 11. | Electrical polarities of sun andplanets | [82] |
| Fig. 12. | Ideal view of the generation andtransmission of planetary electricity | [89] |
| Fig. 13. | The aurora borealis, view of | [91] |
| Fig. 14. | Diffused brush discharge of anelectrical machine | [91] |
| Fig. 15. | Planetary generation andtransmission of electrical energy to the sun, analytical illustrationof | [101] |
| Fig. 16. | Gradual discharge of electricityfrom one conductor to another in a partial vacuum | [103] |
| Fig. 17. | Sudden electrical discharge throughthe atmosphere | [103] |
| Fig. 18. | Position of planets with referenceto the generation of sun-spots; maximum and minimum of electricalaction | [108] |
| Fig. 19. | Analysis of a typical sun-spot | [112] |
| Fig. 20. | Retardation of sun-spots in theirtravel across the solar face; development to the rear and recession infront | [114] |
| Figs. 21 and 22. | Complex lines of planetaryelectrical action upon the sun produced by the inclination of the solaraxis to the plane of the ecliptic | [120] |
| Figs. 23 to 29. | Examples of electrical repulsion:Fig. 1, similarly electrified pith-balls; Fig. 2, the electricalwindmill; Fig. 3, repulsion of a flame; Fig. 4, self-repulsion around aconductor; Fig. 5, attraction between opposite and repulsion betweensimilar electricities; Fig. 6, mutual repulsion between similar +electrospheres of the earth and the moon; Fig. 7, mutual repulsionbetween the similar—electrospheres of sun and comet | [124] |
| Figs. 30 to 34. | Spectra of solar light,incandescent sodium and calcium, and the absorption and bright-linespectra of hydrogen gas | [155] |
| Figs. 35 to 37. | Reversal and neutralization ofspectroscopic lines of hydrogen in the light of a variable star likeBetelgeuse | [160] |
| Fig. 38. | A double-sun nebula in process ofdevelopment into a solar system | [164] |
| Fig. 39. | Double stars with complementarycolors, interpretation of the phenomena of | [167] |
| Fig. 40. | A solar system which would explainthe regular variability of the star Mira | [178] |
| Fig. 41. | Lineal nebula in Sobieski’sCrown which has been affected by currents in the ocean of space | [189] |
| Figs. 42 to 45. | Four stages in the phenomena of anew or temporary star, a “star in flames;” reversal of thehydrogen lines in its spectrum | [196] |
| Figs. 46 and 47. | Illustration of repulsion of thetail of a comet by the similarly electrified solar electrosphere;comparison with similar repulsion in a vacuum-chamber experiment | [211] |
| Figs. 48 and 49. | The electroscope, and mutualelectrical repulsion in a bundle of dry straws | [225] |
| Fig. 50. | Experiment with a candle andcurrents of air from between two disks, illustrating the radialsemi-rotation of a comet’s tail during perihelion | [230] |
| Figs. 51 to 54. | Four non-systemic gaseousnebulæ: Fig. 1, crab nebula; Fig. 2, dumb-bell nebula; Fig. 3,lineal nebula in Sobieski’s Crown; Fig. 4, Catherine-wheelnebula. The latter illustrates the formation of a planetary nebula witha hollow center, or else dispersion into the elements of spaceagain | [263] |
| Fig. 55. | Great spiral nebula in CanesVenatici and a small adjacent nebula affected thereby | [273] |
| Figs. 56 to 59. | Four gaseous nebulæ inprocess of development into solar systems: Fig. 1, divergent spiral;Fig. 2, later stage of a similar spiral; Fig. 3, subsequent stage ofrupture of the nearly circular convolutions of a similar nebula; Fig.4, the same stage in the development of a solar system with a doublesun | [279] |
| Fig. 60. | Nucleated planetary nebula, showingits external ring split and held apart, in part of its circumference,by electrical repulsion | [288] |
| Fig. 61. | Divergent spiral nebula on [cover of book]. | |