HRDLKKA] PHYSIOL(X}TCAL AND MEDICAL OBSERVATIONS • 207 



3 Piegan (2 male adults and 1 female child), at the Blackfeet agency, Mont., in a popir 



lation of 2,059. 



1 Pueblo (male child), at the Santa Fe agency, N. Mex., in a population of 566. 



2 Shoshoni or Arapaho (1 male child and 1 male adult), at the Shoshoni agency, 



Wyo., in a population of 1,659. 

 1 Sioux (male child), at the Devils Lake agency, N. Dak., in a population of 1,013. 



1 Sioux (female child), at the Lower Brule agency, S. Dak., in a pcjpulation of 570. 



25 Sioux, Oglala (15 male children, 4 male adults, 5 female children, and 1 female 

 adult), at the Pine Ridge agency, S. Dak., in a population of 6,690. 



13 Sioux, mixed (3 male children, 5 male adults, 4 female children, and 1 female 

 adult), at the Rosebud agency, S. Dak., in a population of 4,977. 



7 Sioux (1 male child, 2 male adults, 2 female children, and 2 female adults), at the 

 Standing Rock agency, N. Dak., in a population of 3,514. 



4 Sioux, Yankton (1 male adult, 2 female children, and 1 female adult), at the Yankton 



agency, S. Dak., in a popidation of 1,702. 



3 Sioux, Lower Yankton (1 male child and 2 male adults), at the Crow Creek agency, 



S. Dak., in a i:)opulation of 1,025. 



2 Ute (1 male and 1 female child), at the Uinta agency, Utah, in a population of 791. 

 1 Ute (male child), at the Southern Ute agency, Colo., in a population of 403. 



1 Indian (male adult), at the Umatilla agency, Oreg., in a population of 1,196. 



1 Walapai (female adult), at the Truxton Canyon agency, Ariz., in a population of 514. 



The above reports embrace 113 cases in 39 localities; in 63, or three- 

 fifths, of the schools and reservations deaf and dumb were not found. 

 The proportion of deaf and dumb per thousand population is 0.87 in 

 the Indians, against 0.68 in the United States whites." The excess in 

 the Inchans is very probably chargeable to neglect and improper treat- 

 ment of chseases of the organs of hearing, and not to a greater propor- 

 tion of deaf and dumb born. The influence of climate and heredity is 

 suggested b}^ the facts that nearly all the tribes in which the condition 

 predominates live in cold regions, and that the majority of these 

 belong to one people — the Sioux. 



Deaf and dimib per 1,000. Deaf and dumb per 1,000. 



Cheyenne (Oklahoma) 7.6 



Coeur d'Alenes 6. 9 



Sioux (Oglala) 3. 7 



Flathead Agency Indians (Montana) . 3. 2 



Sioux (Lower Yankton) 2. 9 



Crows (Montana) 2.7 



Sioux (Rosebud agency) 2. 6 



Sioux (Yankton) 2. 3 



Omaha 2. 3 



Sioux (Standing Rock, N. Dak.) 1. 9 



Piegan 1.5 



Among the total 113 cases 74, or 65.5 per cent, were males, and 39, 

 or 34.5 per cent, were females, which gives the proportion of 190 to 100. 

 Among the whites, according to the data of the Eleventh Census, the 

 proportion of male to female deaf and dumb was only as 116 to 100. 

 The cause of this marked discrepancy between the two races is not 

 apparent. 



As to age, among the males 38, or a little more than half, among the 

 females 10, or one-fourth, were adults, the remainder being adoles- 

 cents and children. 



1 Report on the. Insane, Eleventh Census, 1890, Washington, 1895- 



