group those counties ineach which one or two Negro enumerators were employed, the percentage mulatto decreased from 21 to 14.2; and considering as a third group those counties in which white enumerators only were employed, the percentage decreased from 19.6 to 15.9. Thus the decrease in the counties in which white enumerators only were employed in 1910 was nearly two-thirds as great as the decrease in those counties in each of which three or more Negro enumerators were employed in that year.

"Moreover, in every one of the 26 states covered by the comparison, a decrease in the percentage mulatto between 1910 and 1920 is shown for the group of counties in which white enumerators only were employed in 1910, and in a number of cases this decrease was equal to or greater than that for the groups of counties in which Negro enumerators were employed in 1910. It appears, therefore, that the employment of Negro enumerators in certain counties in 1910 and of white enumerators only in 1920 had some effect in reducing the proportion of mulattoes in the Negro population, as shown by the returns for 1920 in comparison with those for 1910, but that this was not the sole nor principal cause of the indicated decrease."

INCREASE BLACK AND MULATTO ELEMENTS NEGRO POPULATION BY 20 YEAR PERIODS, 1850-1910 AND THE 10 YEAR PERIOD, 1910-1920

CLASSIFICATION OF NEGRO POPULATION BY SEX.

In 1920 the division of the Negro population by sex was: Males, 5,209,436 females, 5,253,695. The number of males to 100 females was 99.2. In the urban Negro population the number of males to 100 females was 95-4; in the rural Negro population the number of males to 100 females was 101.2. PROPORTION BLACK AND MULATTO BY SEX; 1929, 1910, 1870 and 1860.

MARITAL CONDITIONS

MARITAL CONDITIONS NEGRO POPULATION, 15 YEARS OF AGE AND OVER, BY SEX-1890-1920

823,996 26.6 1,775,949

57.2

459,831

14.8 33,286

53.7

414,107

15.4 22,033

803,683 29.9 1,443,817
652,314 30.0 1,187,434 54.6 320,194 14.7 10,688

PER CENT INCREASE ACCORDING TO COLOR, NATIVITY, AND WHETHER BORN IN STATE OF RESIDENCE, 1910-1920, AND PER CENT DISTRIBUTION OF WHITES AND NEGROES BY AGE AND MARITAL CONDITION, 1920, FOR SELECTED STATES The States for which percentages are given are those in which Negroes constituted 5 per cent or more of the total population in 1920.

AGE* AND MARITAL CONDITION OF NATIVE WHITES AND OF TOTAL NEGROES

*Percentages for age based on total population of specified class, including a small number of persons of unknown age.

?Native and foreign born Negroes not tabulated separately by age groups.