Revision as of 07:02, 29 August 2008 by Ngraham
Contours or Contour Lines
English Statute Miles
- "The international mile (and before 1959, the statute mile) is the distance typically meant when the word mile is used without other qualifying words (e.g. nautical mile, see below). The international and statute miles are both equal to 5,280 feet, but the international mile is defined in terms of the international foot (0.3048 m), while the statute miles of the various English-speaking countries were based on the national foot of each country. The (mostly obsolete) U.S. statute mile is based on the U.S. survey foot (which is exactly 1200/3937 m) and differs from the international mile by about 3 mm. 
- The name statute mile originates from a Statute of the Parliament of England in 1592 during the reign of Elizabeth I. This defined the statute mile as 5,280 ft or 1,760 yards; or 63,360 inches. Both statute and international miles are divided into eight furlongs (the length generally that a furrow was ploughed before the horses were turned, furlong = furrow-long). In turn a furlong is ten chains (a surveyor's chain, used as such until laser range finders took over); a chain is 22 yards and a yard is three feet, making up 5,280 ft." - http://en.wikipedia.org/wiki/Mile
- also rhumb lines or rumb lines, or loxodrome. "This line of constant bearing is called a Rhumb line. The word 'rhumb' (or sometimes rumb and it is the same in French though not very well known) comes from the name of angle measurement representing the 'point' on the old fashioned compass cards. There are 32 'rhumbs' in 360 degrees, hence a rhumb is 11 1/4 degrees." (Source: http://jacq.istos.com.au/sundry/navrhumb.html)
Sculp. (also Sc., Sculpt., or Sculpsit)
- Variations of this term (from the Latin word sculpsit, meaning to carve or engrave) are used to denote the name of the engraver of the map. The name of the engraver is often listed at the bottom of the map.