1. On the mean depth of line formation in a magnetic field

   • Jürgen Staude

   OriginalPaper Pages: 255 - 261

2. Solar seeing and the spatial properties of the five-minute oscillations

   • John H. Thomas

   OriginalPaper Pages: 262 - 273

3. Velocity oscillations in the solar atmosphere

   • J. C. Bhattacharyya

   OriginalPaper Pages: 274 - 287

4. Magnetic fields and helium-D₃ spectroheliograms

   • G. A. Chapman

   OriginalPaper Pages: 288 - 300

5. Characteristics of the Ca ii K-line profiles in the quiet Sun

   • Sou-Yang Liu
   • Elske v. P. Smith

   OriginalPaper Pages: 301 - 309

6. Ionized helium in prominences and in the chromosphere

   • Tadashi Hirayama

   OriginalPaper Pages: 310 - 323

7. A method to calculate electric currents in quiescent prominences

   • Ulrich Anzer

   OriginalPaper Pages: 324 - 335

8. On the interpretation of the π-component splitting in sunspot spectra

   • V. N. Obridko
   • L. B. Demkina

   OriginalPaper Pages: 336 - 341

9. On C₂ lines in sunspot spectra

   • Hubertus Wöhl

   OriginalPaper Pages: 342 - 353

10. C₂ in sunspots

    • J. W. Harvey

    Research Notes Pages: 354 - 355

11. Z-dependence of the level intervals in 2s ² 2p ², 2s ² 2p ³ and 2s ² 2p ⁴

    • Bengt Edĺen

    OriginalPaper Pages: 356 - 367

12. Raies nouvelles observées lors de l'éclipse du 7 Mars 1970

    • Z. Mouradian

    Research Notes Pages: 368 - 369

13. Atlas of magnetic fields in the solar corona

    • Gordon Newkirk Jr.
    • Dorothy E. Trotter
    • Robert Howard

    Research Notes Pages: 370 - 372

14. Étude hydrodynamique du grand jet coronal ne observé à l'éclipse du 7 Mars 1970

    • S. Koutchmy

    OriginalPaper Pages: 373 - 384

15. Coronagraphic observations of an enhanced coronal region

    • Richard R. Fisher

    OriginalPaper Pages: 385 - 394

16. Photographs of the Sun in the XUV-region

    • M. Burger
    • J. H. Dijkstra

    OriginalPaper Pages: 395 - 404

17. Observations and comments for the solar event of 24 October, 1969

    • Arthur E. Covington

    OriginalPaper Pages: 405 - 410

18. Measurement of the electron temperature of small 3-cm radio bursts

    • Peter Foukal

    Research Notes Pages: 411 - 413

19. Thick-target processes and white-light flares

    • H. S. Hudson

    OriginalPaper Pages: 414 - 428

20. New measurements of the polarization of X-ray solar flares

    • I. P. Tindo
    • V. D. Ivanov
    • A. I. Shuryghin

    OriginalPaper Pages: 429 - 433

21. Solar soft X-rays and solar activity

    • Richard G. Teske
    • Roger J. Thomas

    OriginalPaper Pages: 434 - 443

22. A dynamic theory of type III solar radio bursts

    • V. V. Zaitsev
    • N. A. Mityakov
    • V. O. Rapoport

    OriginalPaper Pages: 444 - 456

23. The time behaviour of the continua during the initial stage of type IV bursts

    • A. Böhme

    OriginalPaper Pages: 457 - 474

24. Change of solar flare proton to alpha ratios during an energetic storm particle event

    • M. Scholer
    • D. Hovestadt
    • B. Häusler

    OriginalPaper Pages: 475 - 482

25. A search for neutrons of solar origin using balloon borne detectors 1967–69

    • C. J. Eyles
    • A. D. Linney
    • G. K. Rochester

    OriginalPaper Pages: 483 - 497

26. Book review

    • Z. Švestka

    BookReview Pages: 498 - 498

27. Abstracts of forthcoming papers

    Abstract Pages: 499 - 504

28. Abstracts of papers from other journals

    Abstract Pages: 505 - 508