NO. 4 CONTEXTS VII 



2W. Deviations of the surface temperatures for io° fields in 



longitude, Channel-New York. 

 3W. Deviations of the surface temperatures for 10° longitude 



fields Portugal to 40" west longitude. 

 4W. Deviations of the surface temperatures for Danish fields 



between 50° and 64° north latitude and o' and 40° west 



longitude. 

 5W. Deviations of the surface temperatures for Danish 10° 



longitude fields in the Northeast Atlantic Ocean. 

 6L. Deviations of the air temperature for 2° fields, Channel- 

 New York. 

 7L. Deviations of the air temperatures for 10" fields of longi- 

 tude, Channel-New York. 

 8L. Deviations of the air temperatures for 10° longitude fields, 



Portugal to 40° west longitude. 

 9WL. Deviations of the difference : Surface temperature minus 



air temperature for 2° fields, Channel-New York. 

 loWL. Deviations of the difference : Surface temperature minus 



air temperature for 10° longitude fields, Channel-New 



York. 

 iiWL. Deviations of the dift'erence : Surface temperature minus 



air temperature for 10° longitude fields, Portugal to 40° 



west longitude. 

 12D. Directions of isobars and pressure gradients for 10° fields 



of longitude, Channel-New York. 

 13D. Directions of isobars and pressure gradients for 10° fields 



of longitude, Portugal to 40° west longitude. 

 14D. Directions of isobars and pressure gradients for Danish 



10° fields of longitude in the Northeast Atlantic Ocean. 

 15D. Directions of isobars and pressure gradients for Liepe's 



stations. 

 16D. Directions of isobars and pressure gradients in different 



coast stations. 

 17D. Deviations of the air pressure difference between the 



Azores maximum and the Iceland minimum. 

 18L. Deviations of the air temperatures in four regions of the 



United States of America. 

 19M. Monthly mean of the daily variations of the magnetic 



declination in Christiania. 

 20S. Monthly mean of the daily numbers of solar prominences. 

 Explanation of Plates 405 



