Results
Page 1 of 1
- Clara Township Map ca.1885Early 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
- Gazetter & Directory for 1885
Brantford, Burford,Oakland, Onondaga, South Dumfries Townships from the Union Publishing Co's Farmers' Directory for the County of Brant for 1885-1886Pages 71-116Pages 71-116
Page 1 of 1