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Start Over You searched for: Publish Year Decade 1920 - 1929 Remove constraint Publish Year Decade: 1920 - 1929 Sudoc Stem C 22.8/a Remove constraint Sudoc Stem: C 22.8/a

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71. Slate in 1926; by A. T. Coons.

75. Antimony in 1926; by J. W. Furness.

79. Tin in 1926; by J. W. Furness.

80. Arsenic in 1926; by V. C. Heikes.