SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 7 1 



Fig. I. — Temperature of Buenos Aires following maxima of solar radiation. 



Ai, Following solar maxima above 1.990. A2, Following maxima of 

 1.980 ±10. . • r 



As, Following solar maxima of 1.960 ±10. A^, Following maxima of 

 1.940 ± 10. 



Ai, Mean of A3 and An. 



Aa, Same as Ai at time of sun-spot maximum. At, Same as Ai at spot 

 minimum. 



Ai, Differences between means following highest and lowest values. 



A2, Differences between means near average values. 



