314 II. Arctowshi — About Climatical Variations. 



Conclusion. 



The main question is to know what produces these variations 

 of short and of long duration % 



During some volcanic eruptions great quantities of pulver- 



Fig. 3. 



3. 



F. 



t\. 



IV 



rv 



:. 



j 



ft. 



s. 



0. 



if. 



3>. 













A 



k 







r\ 







A > 



*f 





(\ 



t 



W 



f 



V 



J 



\ 



P 



V 



V 



y\y 



53' 



V 





\ 







> 



r 



V 





V 





A« 



















4 



ox 



• 



ft - 





) 



















t f> 





5* 





J 



















IG u.? 





























Si* 











A 





















5<\ 







r 



\ 



^ 









1 



\ 



/ 



"\ 



j 





r\ i 



J 



\ 





L 



r 



\ 



/ 



\ 



/ 



\J 



I5f 



/ 



V 





\j 



r 



\* 



J 



V 



/ 









54' 



4. 



\ 



s. 





1^0 



6. 



>; 



»■) 



^v 



f\. 



h- 



J. 



tf 



























«• 

























^ 



«■ 







^ 



0% 



















j 

 it 



J. 



F. 



4 



1- 



Nl. 



j. 



J. 



f\> 



S. 



0. 



rf. 



3). 





M.Af. 



Fig. 3. Braehypleionian variations at Arequipa. 



ized ashes have been projected to altitudes higher than the 

 mean elevation of the cirrus clouds. Being above the clouds, 



