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Médias: Objets- Médias: Images
- Année: 1866
- Creative Commons : by-nc-nd
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- Certificate of good conduct
Lucetta Elizabeth Laurel Law, born June 4, 1858, married Amos John Wright, died Feb. 6, 1927. Lucetta Elizabeth Laurel Law, born June 4, 1858, married Amos John Wright, died Feb. 6, 1927.Richmond Hill Public Library - Photograph of Bill Smith and his spouse
Charles Bugg is listed as operating photography business in Toronto in 1866-1868. Charles Bugg is listed as operating photography business in Toronto in 1866-1868.Richmond Hill Public Library - Maria Township ca. 1866
Early surveyors, like William E. Logan, used Rochon micrometer telescopes and targets (disk on a calibrated pole) to measure distance. Each microscope had a different calibration and therefore a different range. The instruments were calibrated against a distance measured with a surveyors chain (also known as Gunter’s chain). One chain … Early surveyors, like William E. Logan, used Rochon micrometer telescopes and targets (disk on a calibrated pole) to measure distance. Each microscope had a different calibration and therefore a different …Head, Clara and Maria Public Library
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