Show I 1 scientific A german astronomer has for many years I 1 been watching the spots on the he I 1 sun stin and daily recording the result from year to year the groups of spots spats vary they are am sometimes numerous sometimes very few af after ter a while it became evident that the variation in number followed an ascending scale through five subsequent sd years so that the periodicity of the variations became a visible fact while our german friend was baisy with his bis group of sun spots an englishman tug lishman was busy with the variations of the magnetic needle he too was a patient pat lent recorder of patient observations on comparing his tabular results with those of the german astronomer he be found that the variations of ma magnetic genetic needle corresponded with ton variations varia lions of ali the sun san spots that the years when the groups were at a maximum and so on through their series I 1 |