AUSTRALASIAN WEATHER 79 



take place in the Southern Ocean. Such 

 changes do not affect Mauritius in the same 

 year as they influence India. To quote the 

 Lockyers' own words : " The delay of about a 

 year in the effect of the Mauritius pulse being 

 felt in Ceylon and India, is exactly what would 



Mauritius Rain- 

 fall 



Hypothetical 

 simple Rain- 

 fall for India 



Compound Rain- 

 fall for India 



FIG. 18. Diagram of the relations of the Rainfall Variation of India 



and Mauritius, according to the Lockyer principle. 



F Famine Points. 



be expected if the rain at sun spot minimum 

 comes from the south, as has been surmised. 

 The fact that the pulses at Mauritius, Ceylon, 

 and India in 1882 occur simultaneously is very 

 strong evidence in favour of an origin in the 

 equatorial region itself for the Indian rain at 



