420 



Mr. H. F. Blanford. The Diurnal Barometric 



nearest to saturation, that the forenoon and late evening minima are 

 most strongly developed. The numerical results of this season, 

 afforded by both series, and also those of the whole year, are given 

 in the following table, and, in parallel columns, smoothed values 

 obtained by the formula 



a + 2b + c 

 h = i ' 



where a, b, and c are the observed values for any three consecutive 

 hours, and b' the smoothed value of the middle term, The curves 

 afforded by the latter for the seven-year series are represented by 

 figs. 4 and 5. 



r TTa~\G 



Uiunuxl variation of rainfall 



