16с

^Kk' f, 7 Ü.S. DEPARTMENT OF COMMERCE ^^Hr'"^ ^ 1 R. P. Lament, Secretary

|^Hr ; I ( BUBEAC OF MINES

I^^^K^; ' Se»tt TwrBer, Director

FUEL BRIQUETS

IN 1930

»By W. H. Y(^JNG and J. A OORSE Mineral Resources of the United States, 1930—Part II Published July 9, 1931

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