Head, Clara and Maria Local History
Maria Township ca. 1866
Description
Media Type
Image
Text
Collection
Item Type
Maps
Description
Copy of the plan of part of the township of Maria.
Notes

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 had 100 links and was 66 feet (about 20 meters) or 22 yards long.


Sources

William E. Logan (2007). 1845 Survey of the Upper Ottawa Valley. Mercury Series History Paper 54. Charles H. Smith and Ian Dyck (eds.). Gatineau, Quebec: Canadian Museum of Civilization Corporation.


surveyor’s chain. (2010). In Encyclopædia Britannica. Retrieved April 14, 2010, from Encyclopædia Britannica Online: http://www.britannica.com/EBchecked/topic/575448/surveyors-chain

Inscriptions
Department of Crown Lands Ottawa. Copy created July 19, 1866. Signed A. Russell, Assistant Commissioner
Date of Original
July 19 1866
Dimensions
Width: 20 cm
Height: 26 cm
Map Scale:
40 chains to an inch
Subject(s)
Collection
Township Collection
Language of Item
English
Geographic Coverage
  • Ontario, Canada
    Latitude: 46.16682 Longitude: -78.06623
Creative Commons licence
by-nc-nd [more details]
Copyright Statement
Public domain: Copyright has expired according to Canadian law. No restrictions on use.
Copyright Date
1866
Contact
Head, Clara and Maria Public Library
Email:hcmhistory@gmail.com
Powered by / Alimenté par VITA Toolkit




My favourites lets you save items you like, tag them and group them into collections for your own personal use. Viewing "My favourites" will open in a new tab. Login here or start a My favourites account.

thumbnail








Maria Township ca. 1866


Copy of the plan of part of the township of Maria.