Consanguineous Marriages in the American Population

United States Census Data--The Blind--Consanguinity of Parents--Blind Relatives--Degree of Blindness--Causes of Blindness--Retinitis Pigmentosa--European Data--Probability of Bl...

Summary of Results--Inbreeding and Evolution--Effects of Close Inbreeding--Crossing and Variation--"Difference of Potential"--Resemblance and Intensification--Coefficient of Cor...

The purpose of this essay is to present in a concise form and without bias or prejudice, the most important facts in regard to consanguineous marriages, their effects upon socie...

Towards determining the average frequency of occurrence of consanguineous marriages, or the proportion which such marriages bear to the whole number of marriages, little has as...

The predominance of male over female births is almost universal, although varying greatly in different countries and under different conditions. This fact has given rise to the...

The principal object of nearly every previous discussion of the intermarriage of kindred, has been either to prove or to disprove some alleged injurious effect upon the offsprin...

Idiocy, perhaps more than any other disease or defect, has long been connected in the popular mind with the marriage of cousins. This fact is not surprising when we consider tha...

The most important source for this chapter is the special report on the Blind and the Deaf in the Twelfth Census of the United States.[75] This report was prepared under the dir...

Having thus considered the more important problems which have been connected with the marriage of near kin, we have only to discuss the bearing of the conclusions thus formed up...