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Summary
| Description |
Siluria. A history of the oldest rocks in the British Isles and other countries; with sketches of the origin and distribution of native gold, the general succession of geological formations, and changes of the earth's surface. Murchison's legend: Loch Assynt and Queenaig Mountain from Inchnadamff Charlotte Dempster, del. Vincent Brookes, lith. LOWER SILURIAN. Laurentian (a), Cambrian (b), Lower Quartz Rock (c1), Limestone (c2, Upper Quartz Rock, etc. (c3) "FRONTISPIECE: View in the North-western Highlands of Scotland (geologically coloured), showing how the Laurentian Rocks are there surmounted by Cambrian and Silurian Rocks". |
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| Date | ||||
| Source | https://www.biodiversitylibrary.org/pageimage/47012321 | |||
| Author | Murchison, Roderick Impey | |||
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| Collection | Field Museum Library | |||
| Page ID | 47012321 | |||
| Item ID | 180357 (Find related Wikimedia Commons images) | |||
| Title ID | 100873 (Find related Wikimedia Commons images) | |||
| BHL Page URL | https://www.biodiversitylibrary.org/page/47012321 | |||
| DOI | 10.5962/bhl.title.100873 | |||
| Page type | Text Illustration | |||
| Credit | Public domain. The BHL considers that this work is no longer under copyright protection.
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Licensing
This image is in the public domain because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason:
This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as when the enhancements are clear but insufficient. For known raw unenhanced scans you can use an appropriate {{PD-old}} tag instead. For usage, see Commons:When to use the PD-scan tag.  | ||||
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:10, 13 March 2022 | | 4,100 × 2,440 (1,015 KB) | Thincat | slight rotation |
| 14:09, 13 March 2022 |  | 3,846 × 2,434 (1.17 MB) | Thincat | File:Siluria BHL47012321.jpg cropped 7 % horizontally, 5 % vertically using CropTool with lossless mode. |
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