Vol.1, No.1 (1957-01-30 issued)
| On the Behaviour of Water Droplets in the Air at temperatures below Freezing | |
| MAGONO, Choji;ORIKASA, Keitaro;YAMAZAKI, Tadashi | 1-5 |
| The Charge on Precipitation Elements and Surface Electric Potential Gradient | |
| MAGONO, Choji;ORIKASA, Keitaro;OKABE, Hiroshi | 7-20 |
| Recent Activity of Volcano Me' akan-dake | |
| SAKUMA, shuzo;MURASE, Tsutomu | 21-36 |
| Volcanic Tremor of ME' akan-dake | |
| SAKUMA, shuzo | 37-53 |
| Amplification Factor of the Electromagnetic Recorder having no Electric Amplifier | |
| TAZIME, Kyozi | 55-67 |