498 HUGH CHARLES KIDDLE. 
The periodicity may therefore be summed up as indicative ofa 
recurrence of similar seasons at intervals of about eighteen or 
nineteen years. Taken alone this knowledge may prove of much 
service to both the pastoralist and the agriculturalist, and if so, 
one of the objects aimed at will have been accomplished. But 
apart from the knowledge of the periodicity, these tables afford 
the means of working out the relationship between the amount of 
rainfall and the resulting crops. This may be effected by com 
paring the amount registered in any particular season, that is 
from ploughing time to harvest of any particular year, with the 
recorded average yield per acre of the crop under consideration. 
For instance bushels per acre would be assumed in discussing 
wheat crops, tons per acre if vines. 
The tables are particularly useful in this respect, as by dividing 
the period the crop is in the ground into sections, the most bene- 
ficial amount of rainfall and opportune season for‘it to fall may 
be discovered. A wheat crop for instance, may be divided into 
(1) ploughing and sowing period, (2) growing period and, (3) 
ripening period. The fact that the same annual amount of rail- 
fall will not necessarily produce the same result in the crops in 
any two years is so apparent as to need no enlargement thereon 
In conclusion I may say that although the period of twenty- 
three years is short from a meteorological point of view, the 
results deduced therefrom will I hope be found not altogether 
unworthy of notice. 
At some future period I hope to be in a position to place before 
you not only the rainfall results of this district, but results of the 
investigation of rainfall, pressure, temperature, winds, et¢., CO 
bined, and not only for this district but also for any other i2 
which it may be my lot to reside. 
Finally, before I close my remarks, I must take the opportunity 
of thanking all those gentlemen who have supplied me with coples 
of their records; without their assistance this paper could not have 
been produced. I must also thank the Government Astronomeh 
. 
