EFFECTS OF IMMIGRATION OX HOMICIDE 173 



ants born of native parents. Only 19 per cent, of Denver's population 

 are foreign born. 



The question may well be raised: Why has the state of Colorado so 

 high a ratio of deaths from violence (52.5 per one hundred thousand of 

 population), and Denver so few arrests for crimes of violence? It 

 may be replied that homicide is not naturally frequent in urban com- 

 munities, but prevails in sparsely settled regions, or in mining dis- 

 tricts. In general, homicides decrease as the proportion of persons 

 engaged in manufacturing increases, and increase as the proportion of 

 persons engaged in mining increases. 



The figure above illustrates this principle, the states and terri- 

 tories being arranged according to the annual average of deaths from 

 homicide during the decade 1890-99, the District of Columbia having 

 the smallest number of deaths from violence, and Nevada the highest 



Fig. 5. Scale showing Per cent, of Foreign-born Population (from Northern Europe, 

 United Kingdom, Norway, Sweden, Denmark, Germany), and from the Dominion 

 of Canada, by States and Territories, arranged according to their pro- 

 gressive criminality in respect to annual average homicides 

 committed therein during the decade 1*90-1899. 



