Directions for making the best composition for the metals of reflecting telescopes : And the method of casting, grinding, polishing, and giving them the true parabolic figure. By the Rev'd John Edwards, B.A. Published by order of the Commissioners of longitude.
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| Format: | eBook |
| Language: | English |
| Published: |
[London] :
[publisher not identified],
[1783?]
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| Online Access: | Connect to the full text of this electronic book |
| Item Description: | Reproduction of original from Cambridge University Library. Electronic resource. |
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| Physical Description: | 1 online resource (60 pages) |
| Place of Publication: | Great Britain -- England -- London. |