Appendix, p. 615.

Contents of plates, third page following p. 124.

Contents to report on a preliminary investigation of the properties of the copper-zinc alloys precede p. 2.

Plates I-XIV. Graphical representations of the properties of copper-zinc alloys follows p. 124.

Report on a preliminary investigation of the properties of the copper-zinc alloys, made under the direction of the Committee on Metallic Alloys, United States Board Testing Iron, Steel, Etc., Robert H. Thurston, Chairman, in the mechanical laboratory of the Stevens Institute of Technology, third page following p. VII.

Report on the tests of quality of steel for tools made under the direction of the Committee on Tool Steels, United States Board Testing Iron, Steel, Etc., David Smith, Chairman, third page preceding p. 404.

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Ex. doc. / 46th Congress, 2nd session. House ; no. 23

United States. Board for Testing Iron, Steel, and Other Metals.

United States. President (1877-1881 : Hayes)