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Abstract
According to the magneto-hydrodynamic theory of sunspots there should be a correlation between the spots on one hemisphere during a certain cycle and spots on the opposite hemisphere during the following cycle. This has been statistically confirmed by Galvenius and Wold, and by Whittle. It is pointed out that individual sunspot groups may be reproduced at the opposite hemisphere during the following cycle. An analysis of the sunspots between – 4° and + 4° seems to support this conclusion, and a number of sunspots are ≥identified≤ as being produced by the same original disturbance in the solar core.