448 



BEAN. 



Americans, but 1 shall discuss that subject fully iu a forthcoming article 

 on Filipino ears. The ear is a European one, and characteristic of one 

 of the Imer types of Europeans. 



The other types of ears among the Igorots resemble the NegTito, 

 and the Malay or Chinese ear without lobule. Three types of ears may 

 be distinguished, ■\^dlich are distributed as follows : 



Types of ears. 



Group. 



Number. 



Typical. 



Oval, no 

 lobule. 



Round. 



Bontoc _ 



12 

 45 

 34 



9 



29 

 20 



2 

 12 

 6 



1 



4 

 8 



Highland 



Total 



91 

 10 



27 



!58 



9 



20 



20 

 1 

 3 



13 1 

 



. 4 









The Bontoc Igorots have a relatively larger number of typical ears than 

 the other groups, although the Highland Igorots have almost as great 

 a relative number, but the Lowland have the least, and also a greater 

 number of round ears (Negrito?). 



The ear index of Topinard(65) is useful in differentiating the types, 

 but Schwalbe's morphological index was not utilized. The ear inde.x 

 greatest breadth x 100 



is the 



greatest lensi:h 



Ear measurements. 



Group. 



Number. 



Breadth. 



Length 



Ear 

 index. 



Ear index (Topinard). 



Type. 



Num- 

 ber. 



Index. 





12 

 46 

 44 



33.1 

 31.9 

 31.4 



.57.2 

 .59.3 

 56.7 



57.8 

 53.8 

 55.3 



Highland 



Lowland 



Total 





8 

 8 

 3 

 13 



54.0 

 59.5 

 60.0 

 61.2 



Melanesians 



Polynesians 



Negroes (African) _^ 



104 

 10 



31.8 



28.8 



57.9 

 49,7 



55.0 

 57.9 











The Highland Igorots have the longest ears and the lowest index, 

 with the Bontoc second and the Lowland third in ear length, but the 

 Lowland index is less than the Bontoc. The ear index is not an absolutely 

 reliable indication of ear type, but with the aid of descriptions it is 

 serviceable. The index of the typical Igorot ear is low because the ear 

 is long and not round. The ear should be one of the best marks to 

 determine the nature of heredity, because it is not subject to sexual 

 selection in the way that other features such as the eyes or nose may be. 



