“…It is interesting to note that these large amplitudes are consistent with the observation of Frost [1960] [Haurwitz, 1956].) Unfortunately, there are no neighboring stations which can be compared with the present determination for Afobaka, but both the amplitude and phase given in Table I are Haurwitz and Cowley [1965, 1966, 1967, Reber [1967], Chapman [1969], Giwa [1972], and Hamilton [1980b] together with those presented in section 2 of the present paper. When there were two determinations for the same station, the one based on the longer record was chosen.…”