Old measurement

[Timothy McCormick <tmcc@xxxxxxxxxxxxxxxxx>]

Dear All:
Can anyone tell me how many yards there are in a chain?  The reason I ask is 
because I have a geological cross section produced in 1950 on which the 
horizontal scale is quoted in chains, and although I have heard of this 
measurement, and assume it has a nautical origin, I cannot find any conversion
table which has it (not even on the internet).

Thanks in advance to anyone who knows.

Tim
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Tim McCormick				Tel: 0141 339 8855 ext 5469
Dept. of Geology & Applied Geology	Fax: 0141 330 4817
University of Glasgow			Email: tmcc@geology.glasgow.ac.uk
Glasgow G12 8QQ
United Kingdom

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Tim's the name,
Measuring trilobites is the game.....