Spectacles without glasses
Date
12 November 1683
Object type
Archive reference number
Manuscript page number
p127a
Material
Dimensions
height (page): 235mm
width (page): 85mm
width (page): 85mm
Subject
Content object
Description
A figure of spectacles without glasses by having two short tubes made of Spanish leather and blackened inside, and placed so that the visual rays received through them meet in one point.
This was included in a paper by Narcissus Marsh (1638-1713), Bishop of Ferns and Leighlin, on a theory of sounds with an extended comparison between seeing and hearing. Marsh's paper was read at the meeting of the Dublin Philosophical Society on 12 November 1683, and then on 16 January 1684 at the Royal Society. It was printed in Philosophical Transactions of the Royal Society, vol. 14, no. 156 (February 1684).
This image is copied at LBC/9/160.
This was included in a paper by Narcissus Marsh (1638-1713), Bishop of Ferns and Leighlin, on a theory of sounds with an extended comparison between seeing and hearing. Marsh's paper was read at the meeting of the Dublin Philosophical Society on 12 November 1683, and then on 16 January 1684 at the Royal Society. It was printed in Philosophical Transactions of the Royal Society, vol. 14, no. 156 (February 1684).
This image is copied at LBC/9/160.
Object history
At the meeting of the Royal Society on 16 January 1684, the minutes of the weekly meeting of the Dublin philosophical society were read, which reported that on 12 November 1683, '‘The Lord Bishop of Ferns [Narcissus Marsh, Bishop of Ferns and Leighlin] produced a discourse concerning sounds and hearing, and comparing them in many respects to images and seeing, he offered many curious proposals for advancing one, as the other is advanced by optic glasses’ (Birch 4:248).
Printed in Narcissus Marsh, Lord Bishop of Ferns and Leighlin, ‘An introductory essay to the doctrine of sounds, containing some proposals for the improvement of acoustics’, Phil. Trans. vol. 14, no. 156 (February 1684), pp. 472-88.
Printed in Narcissus Marsh, Lord Bishop of Ferns and Leighlin, ‘An introductory essay to the doctrine of sounds, containing some proposals for the improvement of acoustics’, Phil. Trans. vol. 14, no. 156 (February 1684), pp. 472-88.
Associated place