The statistics of the population of the United States, embracing the tables of race, nationality, sex, selected ages, and occupations ; to which are added the statistics of school attendance and illiteracy, of schools, librariers, news-papers and periodicals, churches, pauperism and crime, and of areas, families, and dwellings ; compiled, from the original returns, of the ninth census, (June 1, 1870,) under the direction of the secretary of the interior