John Michell lecture

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cerrig C
cerrig May 7, 2016 17:43:19
Replying to tiompan

Going to the site and measuring is how I would go about it. How would you do it. It's not a secret George, is it?

T tiompan
tiompan May 7, 2016 17:50:36
Replying to cerrig

I just told you it wasn't .

How would you measure the alt ?