26 H. B. Ferris, M.D. 



Index Quichua Males Quichua Females 



-54.9 Hypermicrotic 8.2 per cent 13.3 per cent 



55-59.9 Microtic 31 -8 per cent 38.2 per cent 



60-64.9 Mesotic 35-3 per cent 29.4 per cent 



65- Macrotic 24.7 per cent 19. i per cent 



r 



The accompanying tabulation makes possible a comparison of 

 the ear measurements of the Quichua male with other American 

 groups : — 



Ear Height Ear Breadth Physiognomic Index 



South American Indian (Ehrenreich) 60.0 



Shoshoni ( Boas) 65.2 



Eskimo (Duckworth) 67.5 31.1 53 



Quichua Male (Yale-Nat. Geog. Peru- 

 vian Exp. 1912) 60.9 36.0 59.5 



Quichua Male (Yale-Nat. Geog. Peru- 

 vian Exp. 1915) 62.0 38.0 61. 1 



Quichua (Chervin) 61.0 35-0 57 



The average of the ear indices obtained by the two Yale Expe- 

 ditions is distinctly greater than Chervin's results and greater 

 than the index given by Boas for the Eskimo. 



No observations were made on the auriculo-temporal angle, 

 which was found to be medium by the former expedition. 



The seriation table of ear measurements given in the appendix 

 shows that 48.5% of the females have ears between 57 and 62 

 millimeters in height, while about the same percentage (47%) 

 of males are between 59 and 66. In ear breadth 45.5% of the 

 females are between 34 and 36, while a nearly similar percentage 

 (43.5%) of the males are from 37 to 40. It would seem then 

 that a larger ear in the male is a somewhat characteristic sex 

 character of the Quichua. 



Nose. 



. Observations on the nose included the inspection of the dorsum 

 and the inclination of the base, the measurement of the height 

 and breadth, and the determination of the index. The classifica- 

 tion according to the shape of the dorsum is shown in the 

 following table : — 



Males Females 



Concave 1.2 per cent 20.6 per cent 



Slightly concave 2.3 per cent 20.6 per cent 



Straight 21.2 per cent 20.6 per cent 



Convex 31.7 per cent 16.2 per cent 



Slightly convex 21.2 per cent 19.1 per cent 



Very convex 1.2 per cent 2.9 per cent 



Concavo-convex 21.2 per cent 



loo.o per cent loo.o per cent 



