Academia scientiarum, or, The academy of sciences being a short and easie introduction to the knowledge of the liberal arts and sciences, with the names of those famous authors that have written on every particular science : in English and Latine / by D. Abercromby ...

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Title: Academia scientiarum, or, The academy of sciences being a short and easie introduction to the knowledge of the liberal arts and sciences, with the names of those famous authors that have written on every particular science : in English and Latine / by D. Abercromby ...
Author: Abercromby, David, d. 1701 or 2.
Publication: London :: Printed by H.C. for J. Taylor, L. Meredith, T. Bennet, R. Wilde ...,; 1687.
Rights/Permissions: To the extent possible under law, the Text Creation Partnership has waived all copyright and related or neighboring rights to this keyboarded and encoded edition of the work described above, according to the terms of the CC0 1.0 Public Domain Dedication (http://creativecommons.org/publicdomain/zero/1.0/). This waiver does not extend to any page images or other supplementary files associated with this work, which may be protected by copyright or other license restrictions. Please go to http://www.textcreationpartnership.org/ for more information.
Subject terms: Knowledge, Theory of.; Philosophy -- Early works to 1800.; Science -- Early works to 1800.; Intellectual life.
Cite this Item: "Academia scientiarum, or, The academy of sciences being a short and easie introduction to the knowledge of the liberal arts and sciences, with the names of those famous authors that have written on every particular science : in English and Latine / by D. Abercromby ..." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A26553.0001.001. University of Michigan Library Digital Collections. Accessed May 3, 2024.

Pages

Page 52

Sect. VIII. Catoptrick.

CAtoptrick is derived from 〈 in non-Latin alphabet 〉〈 in non-Latin alphabet 〉, a Looking-glass, because it treats of the Rays, as being reflected by polish'd Bodies. This Science demonstrates these following Propositions.

1. If a Ray falling upon a glass, make equal angles, 'tis reflected into itself.
2. Rays reflected from plain and con∣vex glasses, do neither come together, nor are equi-distant.
3. Heights and Depths seem to be overturned in Convex glasses.
4. In Convex glasses, what is on the left hand, appears to be on the right; and what is on the right hand, appears to be on the left.
5. If the eye were in the centre of •• Concave-glass, it would see nothing but itself.

Page 54

Authors.

Euclid and Peter Herigone have written on this Subject.