File:PSM V49 D024 Four surveys of the canadian falls.jpg

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Description Four surveys of the Canadian Falls
Date
Source Popular Science Monthly Volume 49
Author Unknown authorUnknown author
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Extracted image from book, to grayscale, cropped whitespace. Modifications made by Ineuw. The original can be found here: Popular Science Monthly Volume 49.

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current10:08, 29 March 2011Thumbnail for version as of 10:08, 29 March 20111,279 × 1,085 (72 KB)Ineuw{{Information |Description = Four surveys of the Canadian Falls |Source = [http://www.archive.org/details/popularsciencemo49newy Popular Science Monthly Volume 49] |Date = 1896 |Author = Unknown |Permission = {{PD-old

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