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The authors demonstrate by analysing data for 1960, 1961 and 1962

It is shown that during the present solar cycle , the 25303 coronal intensity at hellographic latitudes between 15~ ~ in both hemispheres had two maxima. The first maximum occurred in 1967-68 and the second in 1969-70. At lower latitudes (~ ~ 10 ~ there was only one clear maximum in 1970. These results are in good agreement with those of Gnevyshev (1967) for the previous solar cycle. The North-South asymmetry of 25303 intensity for the period 1957-1970 is studied and its implications to solar-terrestrial relationships are discussed. It is shown that during the period studied, the N-S asymmetry of 25303 intensity is negatively correlated with sunspot activity.

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