01234cam a22002651 4500 l 23000069 DLC 20260227111529.0 820626s1923 xx f 000 0 eng l 23000069 (OCoLC)14811473 DLC DNLM DLC HD6250.U4 C62 1923 W1 UN6181 no.115 1923 United States. Children's Bureau. Child labor and the work of mothers in the beet fields of Colorado and Michigan ... Washington, Govt. print. off., 1923. v, 122 p. plates. Bureau publication no. 115 At head of title: U. S. Department of labor. James J. Davis, secretary. Children's bureau. Grace Abbott, chief. "The investigation was planned and carried on under the direction of Ellen Nathalie Matthews ... Dr. Gertrude A. [sic] Light made physical examinations of children in the Colorado beet-field region and analyzed the findings with reference to health." - Letter of transmittal, p. v. Matthews, Ellen Nathalie, 1884- Light, Gertrude Underhill, 1871- United States. Children's Bureau. Publication ; no. 115. 35679 35679