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Jan 1, 1907

Jan 1, 1934

Jan 1, 1971

Jan 1, 1968

By AIME

[Fig. 1], at left, is a corrected version of the first figure of the paper. Please note corrections in labeling of deposits.

Jan 1, 1973

Jan 1, 1967

Jan 1, 1935

Jan 1, 1946

Jan 1, 1882

Jan 1, 1907

By William P. Blake

The frequent association of apatite in layers in the midst of magnetic iron-ore is highly significant of a stratified and organic origin of both minerals. Usually the phosphate of lirne is more abundant

Jan 1, 1893

Jan 1, 1941

G. A. ROUSH,* South Bethlehem, Pa. (written discussion?).-Mr. Frey is correct in his impression that ice floats, but "frazil" ice happens to be the exception to the rule. The requirements for the formation of

Jan 12, 1919

OFFICERS AND DIRECTORS (The Officers are the President, 6 Vice-Presidents, the Treasurer, and the Secretary) President and Director CARL E REISTLE, JR, '58 Past President and Director HENRY DEWITT SMITH, '57 President-elect and Director GROVER J HOLT, '59

Jan 1, 1956

Jan 1, 1957

Jan 1, 1941

By J. L. Carne

Careful sampling is necessary to maintain sulphide-oxide ratio of open-pit and underground ores.

Jan 6, 1951

By Leon W. Dupuy

SUPPLEMENT THESE tables should accompany Figs 6, 7, 8, 9 and 10, respectively. To follow Fig 6: TABLE 2[a]-Drill Rod [ ] To follow Fig 7: TABLE 3-Rod Coupling [ ]

Jan 1, 1947

Jan 1, 1915