01205cam a22002411 4500 e 37000065 DLC 20260227111226.0 840614s1936 dcu 000 0 eng c e 37000065 (OCoLC)10840946 U.S. Off. of educ. Libr. NBuU DLC premarc LC1045 .A25 no. 191 Ross, W. Arthur. Interpretive science and related information in vocational agriculture; effective utilization of scientific principles and related information in organized agricultural instruction. U.S. Department of the interior, Harold, L. Ickes, secretary. Office of education, J.W. Studebaker, commissioner. Washington, U.S. Govt. print. off., 1936. v, 27 p. 23 cm. U.S. Office of education, Vocational education bulletin no. 191. Agrricultural series no. 50 "Prepared under the direction of J.A. Linke, chief, agricultural education service, United States Office of education, by W.A. Ross, subject-matter specialist in agricultural education. -Foreword. Agricultural education. Agriculture Study and teaching. 21519 21519