H 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. OS 



■ As examples of this there are plotted in figure 5, first the mean 

 solar variations and belovv^ this curve the five-day means of tempera- 

 ture at San Isidro, Manila, Philippine Islands, at St. Johns, N. B., 

 Canada, at Stykkisholm, Iceland, at Sacramento, Cal., United States, 

 at Zungeru, Nigeria, Africa, at Pilar, Cordoba, Argentina, and at 



Fig. s 



Winnipeg", Man., Canada. The Sacramento and the Winnipeg curves 

 are inverted, that is the minus quantities are plotted above the zero 

 line and the plus below. 



It will be noted that all the curves are more or less similar, but 

 none follows exactly the solar variations. For example, the Manila 



