The most important specific occupations for the negroes are those of agricultural laborers, farmers, planters and overseers, and laborers not specified. These three classes are probably more numerous than the total number of persons engaged in agriculture, for the number of laborers not specified who were engaged in other occupations than agriculture is probably greater than the number of persons engaged in agriculture and not enrolled in any one of these three occupations. The total number of southern negroes, with the few Indians and Mongolians engaged in this line of industry, increased between 1890 and 1900 by 30.4 per cent., the southern whites in the same occupations increasing in the same period by 43.5 per cent. As a result the non-Caucasians constituted in 1890 44.4 per cent. of the population in these classes, while in 1900 they constituted 42.0 per cent. These three classes together include two-thirds of all the negro breadwinners. In a number of specific occupations involving some degree of skill, the non-Caucasians in the South constituted a somewhat smaller proportion of the total number of laborers in the South in 1900 than they did in 1890. This statement holds true for launderers and laundresses, carpenters, barbers, tobacco and cigar factory operatives, and engineers and firemen (not locomotive). In some other leading occupations the negroes were more numerously represented in 1900 than in 1890. These include in the professional classes, teachers and clergymen, and in the skilled labor classes, miners and quarrymen and iron and steel workers.