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.

The Royal Society: Science in the Making

Paper, 'A conjecture concerning bladders of air that are found in fishes' by A I

Reference number: CLP/15i/27

Date: May 1675

Description

The author questions whether fish, 'by reason of the bladder of air that is within them', can sustain themselves in any depth of water. Includes one page of engraved figures.

Subject: Zoology / Ichthyology

Published in Philosophical Transactions as 'A conjecture concerning the bladders of air that are found in fishes, communicated by A. I; and illustrated by an experiment suggested by the Honorable Robert Boyle'

Reference number
CLP/15i/27
Earliest possible date
May 1675
Physical description
Ink on paper
Page extent
4 pages
Format
Manuscript

Use this record

IIIF manifest

View​ IIIF ​ manifest Opens in new tab

Open in Mirador viewer Opens in new tab

Export this record

Download PDF Opens in new tab

Citation

Paper, 'A conjecture concerning bladders of air that are found in fishes' by A I, May 1675, CLP/15i/27, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/clp_15i_27/paper-a-conjecture-concerning-bladders-of-air-that-are-found-in-fishes-by-a-i, accessed on 14 November 2025

Link to this record

https://makingscience.royalsociety.org/items/clp_15i_27/paper-a-conjecture-concerning-bladders-of-air-that-are-found-in-fishes-by-a-i

Embed this record

<iframe src="https://makingscience.royalsociety.org/embed/items/clp_15i_27/paper-a-conjecture-concerning-bladders-of-air-that-are-found-in-fishes-by-a-i" title="Paper, 'A conjecture concerning bladders of air that are found in fishes' by A I" allow="fullscreen" frameborder="0" width="100%" height="500px"></iframe>

Related Publications

Hierarchy

This item is part of:

Related Fellows

Explore the collection

  • Classified Papers

    The 'Classified Papers' of the Royal Society are papers from British and international natural philosophers and scholars categorised according to subject areas.

    Dates: 1592 - 1741

    View collection