01247cam a22002651 4500001001300000003000400013005001700017008004100034010001700075035001900092040004600111042001200157050002400169110006000193245014500253260004300398300004400441490005700485500011100542501020800653504003000861650004100891700003200932999001700964e 19000630 DLC20260227111210.0800505s1919 dcua b f000 0 eng c ae 19000630  a(OCoLC)6282964 aLibrary, U.S. Bur. of EducationcOCldDLC apremarc00aLC1045b.A25 no. 311 aUnited States.bFederal Board for Vocational Education.10aTraining courses in safety and hygiene in the building trades.cIssued by the Federal board for vocational education, Washington. May, 1919. aWashington,bGovt. print. off.,c1919. a128 p.bfront., illus., diagrs.c23 cm.0 aBulletinvno. 31. Trade and industrial series, no. 6 aPrepared by J. H. Gill, M.E., special research agent of the Federal board for vocational education.--p. 3. aWith : Home economics education orgainzation and administration / United States Federal Board of Vocational Education. Washington : Govt. Print. Off., 1919. Bound together subsequent to publication.5DLC aBibliography: p. 125-126. 0aBuilding tradesxStudy and teaching.1 aGill, James Herbert,d1867- c20323d20323