1885 — Bulletin of the United States Geological Survey No. 14

A bulletin by the United States Geological Survey from 1885.  Issue number 14 containing: “On the Physical Characteristics of the Iron-Carburets More Particularly on the Galvanic Thermo-Electric and Magnetic Properties of Wrought Iron Steel and Cast Iron in Different States of Hardness Togeher with a Physical Diagram for the Classification of Iron-Carburets”.

Some illustrations and diagrams.

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