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New Pattern Eprouvette

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The only real use of these eprouvettes is to check and verify the uniformity of a current manufacture of powder, where a certain course of operations is intended to be regularly pursued, and where the strength, tested by means of any instrument, should therefore be uniform.

The Project Gutenberg EBook of Class Book for The School of Musketry Hythe, by E. C. Wilford Published 1861