Abstract
The following chief conclusions are reached: The principal part of the Earth's magnetic field consists of a non‐homogeneous magnetization of the Earth's crust down to a depth of about 20 km. In addition, there may exist, for the Earth's nucleus, a magnetic field symmetrical both about the Earth's axis of rotation and the equatorial plane, which may have arisen in the same manner as has the Sun's general magnetic field. Besides these two fields there may be, in general, a third, interplanetary, field, whose axis is perpendicular to the plane of the ecliptic and which may be caused by the Sun's electric radiation. How this latter field may be interrelated with the other two fields is not at present discussed.
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