A practical course in agricultural chemistry for elementary students

A practical course in agricultural chemistry for elementary students. C. A. Browne. J. Chem. Educ. , 1925, 2 ... Published online 1 April 1925. Publis...
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A PRACTICAL COURSE IN AGRICULTURAL CHEMISTRY FOR ELEMENTARY STUDENTSL OF CHUMISTRY, TJN~TBD STATES DEPARTMENT OP Ar.nicr~r;runr:. WASHIN