Abstract
A paper on “The determination of the horizontal component of the Earth's magnetic force at the Magnetic Observatory, Hermanus” by A. Ogg, B. Gotsman, and A. M. van Wijk [see 1 of “References” at end of paper], which dealt mainly with the theory of the Adolf Schmidt standard magnetometer and a simplified method of using it, contained results of the comparison of different types of horizontal‐intensity magnetometers. Since these results were published further data are available for this comparison.The magnetometers, which were available for this comparison, were the three la Cour horizontal‐force magnetometers (QHM) 29, 30, and 58; CIW magnetometer 17; the Adolf Schmidt standard magnetometer; and the F. E. Smith coil‐magnetometer.
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