THE CORRELATIONS OF AREAS OF MATURED CROP AND THE RAINFALL. 39." 



&x> so eo 



Fig. 25. 



Product moments for Kohat (Kharif 

 and succeeding Rabi) — 



Ver. Scale 1 mm. = i|§'" 2 

 r= --076. 



—%\ sin 



Fig. 27. 



Product moment for Lahore — 

 r= -189 + -097. 

 Ver. Scale 1 mm = T ^" 2 

 The equation of the curve fitted is - 



7^-1893) 



Fig* 26. 

 Product moment for Lahore — 



r= -189 + -097. . 



Scale 1 mm = T %%'" i 

 With the curves — 



y = ^sin ! — 2^i + _ 



( 9 2 



y = 3 sin 



in 5 



27T(y — I9OO) 7T 



27 2 



where t is the year A.D. 



Fig. 28. 



Product moment for Ajmere- 

 r = ° — 167 + -099. 

 Scale 1 mm. = \%%" % 



TT 1 C 27T 



■- ) + sin \ —(t — iQoo) 

 2 I J 27 



