Skip to content

Please be aware that some material may contain words, descriptions or illustrations which will not reflect current scientific understanding and may be considered in today's context inaccurate, unethical, offensive or distressing.

Description

Harley begins by presenting an overview of existing literature on pearl structure, pointing out that since Rondelet threw out the idea that pearls are merely diseased concretions occurring in the Mollusca in the same way as 'other morbid calculi' occur in the Mammalia, and Réaumur said they are misplaced pieces of organised shell, the opinions of subsequent writers have but oscillated between these two theories. Harley considers whether pearls belong to the animal or mineral kingdom, and presents observations on microscopic sections of crystalline pearls.

Annotations in ink throughout. Includes five pages of figures showing the structural arrangement of the mineral matters in sedimentary and crystalline pearls.

Subject: Mineralogy / Malacology

Received 6 March 1889. Read 28 March 1889.

Whilst the Royal Society declined to publish this paper in full, an abstract of the paper was published in volume 45 of the Proceedings of the Royal Society as 'The structural arrangement of the mineral matters in sedimentary and crystalline pearls'.

Reference number
AP/66/10
Earliest possible date
1889
Physical description
Ink on paper
Page extent
50 pages
Format
Manuscript
Drawing

Creator name

George Harley

View page for George Harley

Use this record

Citation

George Harley, Unpublished paper, 'The structural arrangement of the mineral matters in sedimentary and crystalline pearls' by George Harley, 1889, AP/66/10, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/ap_66_10/unpublished-paper-the-structural-arrangement-of-the-mineral-matters-in-sedimentary-and-crystalline-pearls-by-george-harley, accessed on 26 May 2024

Link to this record

Embed this record

<iframe src="https://makingscience.royalsociety.org/embed/items/ap_66_10/unpublished-paper-the-structural-arrangement-of-the-mineral-matters-in-sedimentary-and-crystalline-pearls-by-george-harley" title="Unpublished paper, 'The structural arrangement of the mineral matters in sedimentary and crystalline pearls' by George Harley" allow="fullscreen" frameborder="0" width="100%" height="500px"></iframe>

Related Fellows

Explore the collection

  • Archived Papers

    Dates: 1768-1989

    The 'Archived Papers' collection is comprised of original manuscript scientific papers and letters submitted to the Royal Society which remained unpublished or were abstracted in the journal 'Proceedings of the Royal Society' published from 1830 onwards.

    View collection