Abstract
Equipment is being developed to record automatically and continuously the directions of radio static. It is planned to install the static direction‐recorders at stations several hundred miles apart in order to investigate their possibility in locating storms.Ross Gunn has prepared a quantitative theory of the electricity of rain and thunderstorms (Terr. Mag v. 40, pp. 79–106, 1935) which yields agreement with observation. The theory is based on the hypothesis that each droplet of water and its surrounding ionized vapor constitutes a concentration‐cell of about 60 millivolts difference of potential. He has dealt with (Terr. Mag., v. 39, pp. 265–276, 1934) the origin of the Sun's electric field from the standpoint of the systematic drift of the ions of the solar atmosphere.
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