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Mine Exploration Forum

Author Stone mines
tracyclimber

Joined: 06/01/2008
Location: Cornwall

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Stone mines
Posted: 01/02/2020 20:31:56
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I've visited several stone mines and have often seen their tally system written on the walls. How did this work? I can't understand it - I presume they had special measurements? IP: 86.129.43.170
crickleymal

Joined: 12/03/2009
Location: Gloucester

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Stone mines
Posted: 02/02/2020 15:15:48
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I know some of them are multiplication presumably to find square and cubic footage. We came across one in Swan Mine which made no sense for a while.
3 6
2 3
-----
6 9
1 1
-----
7 10

If you think of it as 3ft 6inches or 3.5ft times 2ft 3inches or 2.25 ft. Then you have
2 x 3 ft =6ft. 0.25 ft x 3ft= 9 inches
2ft x 0.5ft = 1 ft 0.5ft x 0.25th = 1 inch (approx)
7ft 10 inches

Which is about right.



--

Malc. Rusted and ropey, Dog eared old copy Vintage and classic or just plain Jurassic All words to describe me.
IP: 2.96.226.106
buxus

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Joined: 24/11/2011
Location: Box

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Stone mines
Posted: 02/02/2020 19:22:02
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There is an article in Descent issue 233 covering the various types of calculations to be found in Wiltshire stone quarries, which are indeed along the lines of crickleymal's example.
https://www.wildplaces.co.uk/descent-233#/
IP: 81.174.137.54
tracyclimber

Joined: 06/01/2008
Location: Cornwall

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Stone mines
Posted: 03/02/2020 20:23:31
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Thanks, makes more sense IP: 109.145.27.119
tracyclimber

Joined: 06/01/2008
Location: Cornwall

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Stone mines
Posted: 03/02/2020 20:23:47
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Thanks, will look it up IP: 109.145.27.119
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