2(X) SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 70 



There is another type which is characteristic of the more western 

 Danish fields at 20° to 29° west longitude and 30° to 39° west 

 longitude shown in figure 'j^, V and VI, and also in the air tempera- 

 ture curves for Eastport, Para (shown in curves VII and VIII) and 

 in part also of the curves for Barbados, Ponta del Gada, St. Helena, 

 Hongkong, as shown in curves IX, XI to XIII, and also in the sur- 

 face temperature curve for the equatorial field at 29° to 31° west 

 longitude (curve X). The curve for St. Johns (XIV) shows a 

 similarity with that for Eastport, but differs in having a secondary 

 maximum in the year 1904. Considerable similarity with this type 

 is also found for the type which includes El Paso, Corpus Christi, 

 Bombay, Honolulu (XVI to XIX) and similarity with these is again 

 found in the curve for Cape Colony, (XV) but this last type, the 

 Bombay type, runs as we have said directly opposite to the types of 

 Batavia. 



To a completely different type belong the curves I and II of figure 

 73, for the air temperature in the western United States on the 

 coast of the Pacific Ocean. These comprise Mielke's region No, 10 

 as collected by us, and curves for Los Angeles in California after 

 Arctowski. Some similarity with this type is found in the tempera- 

 ture curves for Havre and Miles City, both in Montana. There is 

 a certain degree of similarity to these in the Greenland curves for 

 Upernavik and Ivigtut (V and VI), but there is a further develop- 

 ment from these over to Angmagsalik (VII) and Beruf jord (VIII) 

 on the east coast of Iceland and to Thorshaven (X) on the Faroe 

 Islands. An agreement with the last named curve is shown by 

 curve IX for the surface temperature in the eastern Danish field 

 0° to 9° west longitude south of the Faroe Islands, and this again 

 has a partial agreement with the curve for the air temperature in 

 all Norway (XI). These curves have again a certain similarity 

 with the curve XII for the the air temperature in Bermuda and 

 also with the curve for San Juan in Porto Rico (XIII). This 

 again, as mentioned above, has a similarity with the curve for the sur- 

 face temperature of the ocean in the Dutch 10° square at 15° to 

 24° north latitude (XIV) and also with the curve for Arequipa 

 (XV). 



If we had curves for stations lying between, of which Arctowski 

 gives some, we should see a gradual transition between these dif- 

 ferent curves. We see that in this way a correlation between the 

 temperature variations in very widely different regions of the earth 

 may be found, while in closer lying regions between them occur 



