| [1] | Contents. |
| 3-14 | Saug- und Rückstrom in Diffusionpumpen. Pátý, L. |
| 15-28 | Contribution to the problematics of cuprous oxide rectifiers. Kužel, R. |
| 29-32 | Elektrische Erscheinungen bei der plastischen Deformation von Silberchloridkristallen. Vavřinec, E. |
| 33-84 | Problems of origin and evolution of the Kreutz family of Sun-grazing comets. Sekanina, Z. |
| 85-95 | Intensity distribution of Cyanogen and Carbon bands in comet Everhart (1964 h). Vanýsek, V.; Žáček, P. |