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Hopkinson writes: 'I have recently been making some determinations of the curves of magnetisation of iron at varying temperatures up to that at which the iron ceases to be magnetic. Although the experiments are still progressing, some of the results are of sufficient interest to be worth publishing briefly at once. The method of experiment was identical with that which I used for a sample of nickel about a year ago.'

Annotations in pencil and ink. Includes four pages of graphs of experimental results.

Subject: Magnetism / Metallurgy

Received 30 January 1889. Read 14 February 1889.

A version of this paper was published in volume 45 of the Proceedings of the Royal Society as 'Magnetisation of iron at high temperatures. (Preliminary notice.)'.

Reference number
Earliest possible date
14 February 1889
Physical description
Ink and graphite pencil on paper
Page extent
8 pages

Creator name

John Hopkinson

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John Hopkinson, Paper, 'Magnetisation of iron at high temperatures - preliminary notice' by John Hopkinson, 14 February 1889, PP/13/15, The Royal Society Archives, London,, accessed on 24 June 2024

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  • Proceedings Papers

    Dates: 1882 - 1894

    The archival collection known as 'Proceedings Papers' is comprised of manuscripts and occasional proofs of scientific papers sent to the Royal Society which were read before meetings of Fellows and printed in full in the Proceedings of the Royal Society.

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