Chapter II: Part I

PROBLEMS IN SOLAR PHYSICS
CHAP.
1. PROGRESS OF SOLAR PHYSICS 13
2. THE CHEMISTRY OF THE SUN 21
3. PECULIARITIES OF THE SOLAR SPECTRUM 36
4. THE REVERSING LAYER 44
5. HYDROGEN, HELIUM, AND CORONIUM 52
6. THE PHOTOSPHERE AND ITS DUSKY VEIL 62
7. STRUCTURE AND MOVEMENTS OF SUN-SPOTS 73
8. THE SPECTRUM OF SUN-SPOTS 88
9. FACULÆ AND PROMINENCES 98
10. THE CHROMOSPHERIC SPECTRUM 112
11. THE CORONA 123
12. THE SUN’S ROTATION 142
13. THE SOLAR CYCLE 150
14. THE SUN AS A WHOLE 161