The Evolution of Morality. 237 



such shadowy support. They are assumed, not 

 because any particular system of kinship implied 

 them, but because they mediated the logical pro 

 gression from the punaluan to the monogamous 

 family. We know, of course, from history and 

 observation that such unions have been practised ; 

 but there is no reason, save the symmetry of log 

 ical development assumed in Morgan s theory, 

 for making them universal stages in the progress 

 of mankind. As they do not profess, like the 

 other three forms of the family, to be established 

 from systems of consanguinity, and are only spe 

 cies of logical determination of the punaluan, 

 we need not consider them further. 



I^or is much comment required on the Aryan 

 system of consanguinity and affinity. It differs 

 from the preceding systems in being descriptive 

 and not classificatory. It is founded on the mo 

 nogamous family, whose existence, known to us 

 for three thousand years, does not need to be in 

 ferred from any system of consanguinity. This 

 Aryan system is not, according to Morgan, a de 

 velopment of the Turanian as the Turanian was 

 of the Malayan. It is an entirely different sys 

 tem, having no sign of connection with the 

 others. Yet Morgan supposes that all peoples, 

 now having the Aryan system, formerly had the 



