;o 



THE CLIMATE OF AUSTRALASIA 



It is now known that there are three solar 

 cycles. There is a short 3^ years' secondary 

 period in sun spots, which is reflected by the 



Sunspot Curve. 



Magnetic Curve. 



Variations in Rainfall 

 in Bruckner's Normal 

 Districts. 



The rainfall of the 

 whole earth. 



\7 . -\. 





FIG. 17. Long Period Variations of Sun Spots, Magnetic Phenomena 

 and Climate. (W. J. S. Lockyer.) 



