Geophysica Vol. 5, No. 1, 1952

6 articles

1.

On River Level Rising in Springtime as caused by Ice Jams

Heikki Simojoki

2.

The Seismological Station of Helsinki University

Eijo Vesanen

3.

The Geophysical Observatory Sodankylä

E. Sucksdorff

4.

The Magnetic Observatory Nurmijärvi

E. Sucksdorff

5.

Ball Lightning

Helge Petersen

6.

The Variation of the Compass Magnetic Declination 1950

J. Keränen