DISTRIBUTION OF INHERITABLE TRAITS 203 



riage will be the rule in such sects. From this point of view 

 the Special Report of the Census upon Religious Bodies 

 (1906) becomes of great biological interest. In this report 

 we read of the Duck River Baptists, one-third of whom 

 (2,181) are in the Duck River Association; of the Gen- 

 eral Six Principle Baptists with 90 per cent of its membership 

 in Rhode Island; of the Amana Society, all (about 1,700) 

 located in Iowa County, Iowa; of' the Braederhoef Men- 

 nonite Church of Bonhomme County, South Dakota, with 

 275 members, of the Reformed Presbyterian Church (cov- 

 enanted) with 17 members, all at North Union, Pa.; and 

 of the 725 Schwenkfelders of Eastern Pennsylvania. In 

 some of these sects it is probable that the tenet of marriage 

 inside the sect does not obtain, but without such a tenet 

 the result tends to follow and we can but regard such small 

 sects as eugenically unfortunate. 



