'^']6 ON THE NUMBER OF POLAR BODIES AND [VI. 



are shaded differently in order to render the diagram clear. 

 At B six of the loops are seen to have moved to either pole, so 

 that the figure is a representation of the ' reducing division.' 



Figs. II, III. 



Figure III is a diagrammatic representation of 'equal division.' 

 The six loops at the equatorial zone of .^ are shown by different 

 cross-lining and shading to be composed of different ancestral 



