100 



E. T. Quayle 



The following table shows the decennial rainfall variations 

 at two groups of stations, one on the western, the other on 

 the eastern side of the lake system : — 





1885 



1895 



1905 



1910 



Westerx Group. 



to 



to 



to 



to 





1894. 



1904. 



1914. 



1919. 



Oodnadatta - 



+ 5 



-1 



-4 



-15 



Anna Creek - 



+ 



-8 



+ 9 



-9 



William Creek 



-10 



+ 2 



+ 8 



-12 



Stuart's Creek 



+ 5 



-14 



+ 8 



-1 



Arcoona 



+ 5 



-3 



-2 



-5 



Coondambo - 



+ 1 



-9 



+ 8 



+ 2 



Means 



+ 1 



-6 



+ 4 



-7 





1885 



1895 



1905 



1910 



Eastern Group. 



to 



to 



to 



to 





1894. 



1904. 



1914. 



1919. 



Warcowie 



+ 11 



-10 



+ 8 



+ 11 



Holowiliena - 



+ 13 



-25 



+ 13 



+ 23 



Belton 



+ 14 



-24 



+ 10 



+ 11 



Paratoo 



+ 19 



-32 



+ 13 



+ 20 



Frome Downs 



+ 14 



-31 



+ 18 



+ 27 



Cockburn 



+ 21 



-20 



-1 



+ 11 



Means 



+ 15 



-25 



+ 10 



+ 17 



Seasonal Forecasting. 



The effect on this cannot be ignored, since well-filled lakes 

 are a guarantee that for a few years, two at least, the climate of 

 the areas south-east from them will be greatly ameliorated — 

 this can be taken account of by farmers and pastoralists, the 

 latter more especially. For example, whatever the severity of 

 any general drought over south-eastern Australia during the 

 next two years, its effects should be distinctly alleviated over a 

 large area south-east from Lakes Torrens and Frome, as well 

 as over all northern Victoria, and some of the Riverina. 



General Deductions. 



The strength of the preceding reasoning lies, of course, in the 

 general and striking accordance of the results obtained. Taken 

 in conjunction with Victorian experience, these are so numerous 

 that the case for definite rainfall improvements due to local 

 sources may be regarded as definitely proved. It is the evidence 

 we accept to demonstrate the rainfall effects of rising ground 

 proximity to the ocean, prevailing winds, etc., for which we do 

 not need many years' records. This solves the problem of what 



