T.'J^i SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 70 



Entebbe in Uganda (Africa) is situated under the Equator, in 

 0° 5' N. and 32° 28' E. If Dr. Clayton were right in his views, we 

 should expect a very well developed positive correlation at this 

 station near the Equator, especially as there is little wind. Dr. 

 Clayton's investigations give, however, a positive correlation which 

 is less developed than in most other places. According to our view, 

 this is easily understood, considering that during the months of 

 July to November there are very variable winds in this region, and 

 no special direction can be said to be prevailing. 



At Haparanda, in 65° 50' N. 24° 9' E., the winds are variable 

 during the months of July to November, and consequently Dr. 

 Clayton's investigations give a very small and doubtful positive cor- 

 relation for this station. 



At Stykkisholm in Iceland, in 65° 5' N. there are similar condi- 

 tions, this station being situated near the Icelandic pressure mini- 

 mum which may often change its position. Dr. Clayton's com- 

 putations consequently give a very small (negative) correlation. 



At Jurjew in Russia, in 58° 22' N., and 26° 43' E., the prevailing 

 winds are westerly in July and August, and more southwesterly 

 in September, October, and November; but none of these winds are 

 very warm. The consequence is that Jurjew has only a very small, 

 indistinct (positive) correlation. 



Valdivia in Chile, in 39° 48' S. and 73° 15' W., is situated on the 

 southeastern side o'f the South Pacific pressure maximum and should 

 consequently have prevailing westerly and southwesterly winds. But 

 during the months July and August the winds come chiefly from the 

 northwest, according to Buchan's maps, while during the months 

 September, October, and November they have a more southwesterly 

 direction, and should consequently be comparatively cold. Dr. Clay- 

 ton's investigations give accordingly a negative correlation at Val- 

 divia, though slightly developed. 



At Merida, Yucatan, in 20° 50' N. and 89° 40' W., the prevailing- 

 winds are northeasterly or northerly during the months of July to 

 November, and being sea-winds they might be expected to be cool- 

 ing. Dr. Clayton's investigations give consequently a fairly well 

 developed negative correlation for this station. 



At Suva, Fiji Islands, in the southern tropics (18° 8' S. and 

 178° 26' E.) southeasterly winds are prevailing during the months 

 of July to November. As these winds are comparatively cold. Dr. 

 Clayton's investigations give negative correlation at this station, 

 though not very well developed. 



