NO. 4 TEMPERATURE VARIATIONS IN THE NORTH ATLANTIC 201 



variations very different and often having almost entirely different 

 characteristics. 



Two of the principal types which we may call those of Batavia and 

 Bombay show variations which on the whole in the period of time 

 between 1900 and 1910 were in complete opposition. Several of 



1163 iMi iMi isit lan leee iieo ie9o iS3i ie9i lesi itsi ie»i tea leo 



1900 IVO' i^Ui- /yg-l 190'* I90i 19O6 1907 1908 1009 1910 1911 ./g/2 /g/3 



Figure 74. Curves with consecutive twelve-month smoothing for the monthly 

 mean temperature in the United States. I : in Mielke's region 10, Pacific States 

 (north, middle and south Pacific Coast). II : Mielke's region 9, Gulf states (Florida, 

 east and west Gulf). IV: in Mielke's region 17, Atlantic states (New England, 

 southern and middle Atlantic states). VI :^ Mielke's region 16, interior states 

 (lower and upper lake region, Ohio, upper Mississippi-AIissouri Valley, northern, 

 middle and southern plateau). Curves III, V, VII: Air pressure in Galveston, 

 Washington and Duluth. M: degree of disturbance of the three magnetic elements 

 in Potsdam.^ R. and C : monthly means of daily number of prominences according 

 to observations in Rome, (R) Catania (C). All curves indicate the consecutive 

 twelve-month smoothed mean values. 



1 Incorrectly indie ted with f in the figure. 



2 The numbers on the scale for M should be 6, 5, 4, 3, instead, 4, 5, 6, 7. 



the other curves, particularly the type of curves represented by the 

 surface temperature of the middle Atlantic Ocean, the most westerly 

 of the Danish fields (fig. 'J2, V and VI), Eastport, Para, and St. 

 Johns are transition forms between these two opposite types. 



14 



