01005cam a22002531a 4500 e 14001980 DLC 20260227111202.0 840124s1914 dcuabcf f000 0 eng c e 14001980 (OCoLC)10333322 Library, U.S. Office of Education ABAU ABAU DLC premarc L111 .A6 1914, no. 20 Ferrell, John A. (John Atkinson), 1880- The rural school and hookworm disease / by Jno. A. Ferrell. Washington : G.P.O., 1914. 43 p., 8 leaves of plates : ill., map, ports. ; 23 cm. Bulletin / U.S. Bureau of Education ; 1914, no. 20. Whole no. 593 Copies 1 and 2 with: University extension in the United States / Louis E. Reber. Washington : Govt. Print. Off., 1914. Bound together subsequent to publication. DLC Includes bibliographical references. Hookworm disease. Rural schools. 19742 19742