v. 1. Increase of population in the United States, 1910-1920 : a study of changes in the population of divisions, states, counties, and rural and urban areas, and in sex, color, and nativity, at the fourteenth census / by William S. Rossiter, [Willard L. Thorp, and Le Verne Beales] ; Mortgages on homes : a report on the results of the inquiry as to the mortgage debt on homes other than farm homes at the fourteenth census, 1920 / [by Thomas J. Fitzgerald ; edited by Richard T. Ely] ; The integration of industrial operation : a statistical and descriptive analysis of the development and growth of industrial establishments and of the size, scope and structure of combinations of industrial establishments operated from central offices / by Willard L. Thorp
v. 2. Farm tenancy in the United States : an analysis of the results of the 1920 census relative to farms classified by tenure supplemented by pertinent data from other sources / by E.A. Goldenweiser and Leon E. Truesdell ; School attendance in 1920 : an analysis of school attendance in the United States and in the several states, with a discussion of the factors involved / by Frank Alexander Ross ; Farm population of the United States : an analysis of the 1920 farm population figures, especially in comparison with urban data, together with a study of the main economic factors affecting the farm population / by Leon E. Truesdell
v. 3. Immigrants and their children, 1920 : a study based on census statistics relative to the foreign born and the native white of foreign or mixed parentage / by Niles Carpenter ; The growth of manufactures, 1899 to 1923 : a study of indexes of increase in the volume of manufactured products / by Edmund E. Day and Woodlief Thomas ; Women in gainful occupations, 1870 to 1920 : a study of the trend of recent changes in the numbers, occupational distribution, and family relationship of women reported in the census as following a gainful occupation / by Joseph A. Hill
v. 4. Earnings of factory workers, 1899 to 1927 : an analysis of pay-roll statistics / by Paul F. Brissenden ; Ratio of children to women, 1920 : a study in the differential rate of natural increase in the United States / by Warren S. Thompson.