Tlic Indians of Cuzco 9 



one case of osteoma of the mandible in a female (No. 9), and 

 a few instances of oriental sore. Goitres were numerous and 

 eleven cases (12.9%) were found in the males (85) and an 

 equal number in the females (16.1%) of the sixty-eight measured. 

 The different lobes were affected in about equal proportion. 

 Goitre seems to be more frequent in the neighborhood of Patal- 

 lacta, where the drinking water comes directly from the glaciers, 

 and it is the prevailing idea of the natives that goitres are pro- 

 duced by drinking glacier water. No exophthalmos was noticed 

 in any of the cases. 



Among the diseases which were treated by Dr. Ford are inter- 

 stitial nephritis, pterygium, typhus, pneumonia, chronic colitis, 

 pulmonary tuberculosis, rheumatism, mitral regurgitation, and 

 oriental sore, a disease due to infection with a protozoan parasite 

 known as the Leischman-Donovan body. The infected area was 

 generally located on the posterior surface of the leg just above 

 the heel, but in some instances the external ear was the region 

 infected. 



Age. 



The ages of the Quichua measured varied from 18 to 49 years 

 in the males and in the females from 15 to 60, giving an average 

 age of 31 for the males and 28 for the females. The following 

 table shows the number in each decade : — 



Males Females 



15-20 years 8 or 9.4 per cent 12 or 17.6 per cent 



21-30 years 31 or 36.5 per cent 29 or 42.7 per cent 



31-40 years 19 or 22.3 per cent 11 or 16.2 per cent 



41-50 years 13 or 15.3 per cent 8 or 11.8 per cent 



51-60 years i or 1.5 per cent 



Ages not given 14 or 16.5 per cent 7 or 10.3 per cent 



85 68 



All but a small percentage had so nearly finished growth that 

 only a slight error is introduced by neglecting the factor of age. 



Hand Pressure. 

 The grip strength was tested in both right and left hands in 

 both males and females by a dynamometer (Schuemann- Jones 

 Co.), recording pressure in kilos with the following results: — 



