concept

The seat of vision determined : and, by the discovery of a new function in the organ, a foundation laid for explaining its mechanism and the various phenomena, on principles hitherto unattempted / by Andrew Horn.

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Please note, due to essential maintenance work to our systems, you will be unable to request items in our collections; apply for, renew or pre-register for a library membership; or use our computers, laptops and printers from 06:00 on Saturday 12 July until 06:00 on Sunday 13 July. Our library will remain open as usual. Thank you for your understanding.

We're running paid user research studies to improve Wellcome Collection online

Hewitt, N. R.

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The seat of vision determined : and, by the discovery of a new function in the organ, a foundation laid for explaining its mechanism and the various phenomena, on principles hitherto unattempted / by Andrew Horn.