Solar dynamo theory and the models of Babcock and Leighton J. H. Piddington OriginalPaper Pages: 3 - 19
On time variations of the solar differential rotation law and asymmetry of the global distribution of the solar activity Hirokazu Yoshimura OriginalPaper Pages: 20 - 33
On the applicability of Goldberg and Unno's method to the determination of microturbulent velocities in an atmosphere with convection C. De JagerL. Neven OriginalPaper Pages: 49 - 52
A comparison between the helium 10830 Å and the hydrogen Hα chromospheres R. G. GiovanelliD. N. B. HallJ. W. Harvey OriginalPaper Pages: 53 - 63
Remarks on the convergency of photospheric model conceptions and the solar quasi continuum Dietrich LabsHeinz Neckel OriginalPaper Pages: 64 - 69
Semi-empirical solar line blanketing J. P. MutschlecnerCharles F. Keller OriginalPaper Pages: 70 - 87
Analyse des renforcements coronaux a travers quelques acquisitions spectroscopiques récentes des émissions monochromatiques du fer ionisé (X à XV) J. P. Rozelot OriginalPaper Pages: 88 - 113
The crossover and magneto-optical effects in sunspot spectra V. M. GrigorjevJ. M. Katz OriginalPaper Pages: 119 - 128
Magnetic fields in umbral atmospheres under ‘similarity’ configuration Hong Sik Yun Research Note Pages: 137 - 139
Observation of a smoke ring on October 30, 1970 Ichiro KawaguchiNobuyuki OdaShun Mizuno Research Note Pages: 140 - 141
Quiet-Sun center-limb observations at 6 and 11 cm during cycle maximum J. C. CeballosP. Lantos OriginalPaper Pages: 142 - 146
Pencil beam observation of a large microwave outburst at 94.8 GHz J. R. Cogdell Research Note Pages: 147 - 149
Results from OSO-IV: The long term behavior of X-ray emitting regions A. KriegerF. PaoliniD. Webb OriginalPaper Pages: 150 - 177
Heating of the solar flare plasma by high energy electrons Chung-Chieh Cheng OriginalPaper Pages: 178 - 188
Streaming of galactic cosmic rays in the interplanetary magnetic field A. HashimM. BercovitchJ. F. Steljes OriginalPaper Pages: 220 - 234
Note on the energy scale of the Michigan OSO III ion chamber Richard G. TeskePhilip E. HodgeSimon P. Worden OriginalPaper Pages: 235 - 239
Abstracts of papers from other journals J. -C. HenouxL. D. De FeiterJAY M. Pasachoff Abstract Pages: 252 - 254