Leeson_goniometer.jpg (585 × 220 pixels, file size: 40 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 08:05, 10 February 2012 | ![]() | 585 × 220 (40 KB) | Charles Matthews | {{Information |Description ={{en|1=Perspective and section views of the goniometer invented by Henry Beaumont Leeson; reproduced in John Quekett, ''A Practical Treatise on the use of the Microscope'' (1852).}} |Source =http://w |
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