A THEORY OF HEREDITY TO EXPLAIN THE TYPES OF THE 

 WHITE RACE IN NORTH AMERICA. 



By KOBEBT Bennett Bean." 

 (From the Atiatomical Laboratory, Philippine Medical School, Manila, P. I. 



The classification of the types of man is a stumbling block for an- 

 throfiologists. The basis of such a classification varies with different 

 iriuthors and few agree as to what constitutes a tj^pe, a race, a stock, or 

 a family of men. No attempt is made in this paper to define these 

 different terms, but the word type is used to represent a comijosite entity 

 that is homogeneous in a grouj) of individuals. 



ARRANGEMENT OF DATA. 



The results recorded in this paper are based on measurements made 

 on more than 1,000 students (923 boys, 116 girls) at the University of 

 Michigan in 1905, 1906 and 1907, all of whom with few exceptions were 

 members of the freshman class. 



The physical attributes fall naturally into several groups, such as 

 cephalic index, pigmentation, height, etc., and the tj^pes readily assemble 

 with these attributes as limitations. There are four primary types, four 

 secondary, and five blended ones. 



CLASSIPICATION OF TYPES. 



The most prevalent type is termed the "ISTorthern" throughout this 

 paper, because it originally appeared in northern Europe, now j)redom- 

 inates there and is designated as Northern by many authors, although it is 

 identical with the Cymric race of Broca, the Homo Europeus of Lapouge, 

 and the Teutonic (Germanic) or race of the "row graves." This type 

 is tall, fair haired, light eyed and dolichocephalic, and it occurs in 18 

 per cent of the boys and 28 per cent of the girls. 



The second of the primary types is designated the Iberian (PI. I), 

 because of its evident derivation from the Iberian of Great Britain and 

 Europe. This is the Mediterranean race of Sergi, the southern Europe 

 or Homo mericlionalis of Eipley and Lapouge ; in fine, the Hamitic stock 



" Read at the Fifth Annual Meeting of the Philippine Islands Medical Associa- 

 tion, Manila, February 28, 1908. 



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