242 



GEOGRAPHICAL DISTRIBUTION 



2 4 5 8 10 1-2 14 16 



log (N9of species) 

 Logarithm curve for Rubiaceae (from Willis, Dictionary). 

 (By courtesy of the Editor of Nature.) 



Number of spscies 



Logarithm curve for Chrysomelid beetles (from old Catalogue). 

 (By courtesy of the Editor of Nature.) 



