NO. 4 CONTENTS V 



Temperature variations and sun spots. 



Variations in air pressure and in solar activity. 



Variations in wind and sun spots 



Variations in precipitation and sun spots. 



Variations in height of water in the lakes and rivers. 



Growth of trees. 



Cloudiness and sun spots. 



Dust in the atmosphere and sun spots. 



Theories on the relation between variations of the solar activity 



and meteorological variations. 

 Supplementary note. 

 XL The variations in the meteorological relations in the tropics and the 



northern regions 187 



Relation between the temperatures of different regions of the 



earth and sun spots. 

 Variations of meteorological elements in Batavia. 

 Temperature variations at different stations in the tropics and 



other regions. 

 Temperature variations in the United States. 

 Sudden discontinuities in the agreement between the curves of 



different stations. 

 Variations in different meteorological elements. 

 The air temperature in Stockholm. 

 Variations in the air temperature in Stockholm and in the water 



temperature on the Norwegian coast. 

 XII. The relation between meteorological variations and variations of 



solar activity 211 



Periods found in meteorological variations. 



The air pressure variations and the variations in solar activity. 



Confutation of earlier authors. 



The relation between temperature variations and variations in 



solar activity. 

 The temperature variations in different months of the year in 



Batavia. 

 The temperature variations in different months of the year in 



Fort de France. 

 The temperature variations in different months of the year in 



Stockholm. 

 The temperature variations in different seasons in the coast 



waters of Norway. 

 The temperature variations in different months of the year in 



the interior of Asia. 

 The temperature variations in dift'erent months of the year at 



Liepe's Station i. 

 Halving of the eleven-year period at Liepe's stations. 

 A conclusion. 

 No direct connection between variations in the solar radiation 



and temperature variations on the earth's surface. 

 The yearly amplitude of the temperature in North America. 



