448 F. H. Bigelow — Inversion of Temperatures in 



Geophysik, III, 1892, with extension to latest observations. 

 These numbers are variations on the mean sun spot number 

 40, multiplied by the factor |-. The accompanying diagram, 



Relative Variations : the Gtmencan Afeteoro/oj/cat the European Magnetic, 

 and the fun Spots. 1876-1693 



Movement 

 in Latitude. 



Movement 

 in Longitude 



European 

 Magnetic 

 intensity. 



Sun Spot 

 A/umbers, 



plotted on the scale 0*5 mm = unit, gives the comparison of the 

 changes in the American Meteorological System, the European 

 Magnetic Field, and the visible surface of the Sun. The con- 

 clusion seems unavoidable that we are here dealing with dif- 

 ferent portions of a great cosmical system, emanating from the 

 sun and influencing the entire northern hemisphere of the 

 earth, by means of the polar magnetic field. Similar compu- 

 tations for the changes in the meteorological system, its move- 

 ment in latitude and longitude, and its mean and amplitude 

 temperatures, have been executed for the annual, and the 26*68 

 day periods, with results in agreement with this important 

 thesis. 



