41S Sir NonnMii Lcky.:r and I>r. \V. .1. S. Lo-kv.-i. 



Meldrum, a* far hack as !.*>!.* referred in "the eMrrme ox-illations 

 of \\eathcr changes in dinerent pl.n -. at the turning points of the 

 <-ir ve- rrpre.-enting the im-rea-i- ami <lrcrea.se of solar activity." 



It was especially in regions, such as .Malabar and the Konkan where 

 the monsoon strikes the west coast of India, that the sharping and 

 individuality of these puUc< was the most obvious. 



One method of study employed has depended upon Chamber- > \icwr 

 that the S.W. monsoon depends upon the oscillations of tin- equatorial 

 Kelt of low pressure up to 31 N. lat. at the summer solstice. The 

 months of rain-receipt on the upward and downward swing will 

 therefore depend on the latitude, and these months alone have lieen 

 considered. 



We Ixjgan by taking elevated stations in high and low latitudes. 



rThe 1881 pulse (in July) was the heaviest recorded (1*77 



inches) save one in 1882 : the rainfall was nearly as 

 Lat. 34 N.< , . , 



1 1,500 feet ^^ ^ c felfc - n 187g ^ thc highest of a ,, 



Murree rThe 1881 pulse (August) is high, but is followed by a 

 Lat. .'{.'5 X. < higher next year. 

 6,344 feet (.The 1878 pulse (August) is highest of all. 



^ C\VCI**l "*\ 



" -.-,,. ri Taking the fall in July and August. The 1881 pul<e 



T t '''' v f ccurs m 1882, and is highest. Next comes the 



IjHl.l ^.\. I _ irtKr* 



6,150 feet J P^ 861 " 18 ' 8 ' 



It must also be stated that if we take the sun-spot maximum, 

 including the period we have chiefly discussed (1S77 L^sti), as normal, 

 it is found that there are variations in rainfall accompanying the 

 preceding and succeeding maxima of 1870 and 1893. This varia- 

 tion indicates the existence of a higher law, but there has not been 

 time to discuss them thoroughly enough to justify any definite 

 statements alxnit them. 



The liitiiifiiU </ " H'hl, /,,,li,i." 



The next step was to work on a longer IKISC, and for this purpose 

 Eliot's whole India table of rainfall, 1875-1896,J embracing both the 

 S.W. and X.K. monsoons, being at our disposal, was studied. 



It was anticipated that such a table, built up of means observed 

 such a large area and dming both monsoons, would more or les> 

 conceal the meaning of the separate pulses observed in separate 



* "On the Relations of Weather to Mortality, mid on the Climatic EiIY-i-t of 

 .Forests." 



t ' Indian Meteorological Memoirs,' vol. 4, Part V. p. 271. 

 *J '^Nature,' vol. 5(5, p. 110. 



