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    • Calendar of Patent Records - Nature

      Nature· 21 hours ago

      November 23, 1848.—The idea of perforating sheets of postage stamps was due to Henry Archer, who devised a machine for “cutting or stamping around the margin of every stamp ...

    • The Salmon Fisheries of England and Wales 1 - Nature

      Nature· 1 day ago

      THIS report, although the first issued by the Board of Agriculture and Fisheries, is on the same lines as the forty-three previous annual reports, of the Inspectors of Fisheries of England and ...