Results
- Maria Township ca. 1886Early 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
- Newmarket Era , October 8, 1886......Newmarket Public Library
- Newmarket Era , October 15, 1886......Newmarket Public Library
- Newmarket Era , October 22, 1886......Newmarket Public Library
- Newmarket Era , October 29, 1886......Newmarket Public Library
- Newmarket Era , November 5, 1886......Newmarket Public Library
- Newmarket Era , November 12, 1886......Newmarket Public Library
- Newmarket Era , November 19, 1886......Newmarket Public Library
- Newmarket Era , November 26, 1886......Newmarket Public Library
- Newmarket Era , December 3, 1886......Newmarket Public Library
- Newmarket Era , December 10, 1886......Newmarket Public Library
- Newmarket Era , December 17, 1886......Newmarket Public Library
- Newmarket Era , December 24, 1886......Newmarket Public Library
- Newmarket Era , December 31, 1886......Newmarket Public Library
- Newmarket Era , January 1, 1886......Newmarket Public Library
- Newmarket Era , January 8, 1886......Newmarket Public Library
- Newmarket Era , January 15, 1886......Newmarket Public Library
- Newmarket Era , January 22, 1886......Newmarket Public Library
- Newmarket Era , February 12, 1886......Newmarket Public Library
- Newmarket Era , February 19, 1886......Newmarket Public Library