Abstract
MR. ALFRED GEORGE RENSHAW would like to know (NATURE, vol. xiii. p. 367) whether the pitch of the ash seed screw is that which would give most power to the propeller of a steamer.
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WILSON, A. The Ash Seed Screw. Nature 13, 428 (1876). https://doi.org/10.1038/013428b0
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DOI: https://doi.org/10.1038/013428b0
