Part III—Fundamental research in geophysics relating to prospecting

In addition to projects such as those reported in parts I and II above, the Section of Geophysics of the Federal Government has undertaken a considerable amount of fundamental research.

Two such field‐projects may be mentioned, one a magnetometric study in the Comstock District of Nevada, and the other a resistivity‐study of snow and ice. In addition to the field‐problems, there have been two classes of research of a mathematical type. One of these has been the preparation of tables, scales, and charts for the important geophysical functions already known; the other has been the extension of the relations involved in the resistivity‐problem.