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Date: | Thu, 25 Oct 2007 11:58:04 +0000 |
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Binford worked out the regression formula based on Harrrigton's measurements.
We measure pipes in 64ths and .2 mm increments - Garry Stone developed the metric measuring system to get greater detail (roughly equivalent to 128 ths inch but the drill bits are easier to get. I like the .2 mm measures and then plot the histogram - it flattens the graph and shows variation better. For a site that was occcupied, abandoned, and re-occupied Binford can give you a mean date during the hiatus.
Silas Hurry
Historic St. Mary's City
-------------- Original message --------------
From: geoff carver <[log in to unmask]>
> how 'bout the dutch? i vaguely remember someone there seemed to be running a
> pipestem group of some sort...
> & excuse my ignorance, but how did binford get this? from dated excavated
> material, or somewhere from records in the pipeworks themselves? i can't
> imagine a trade journal for the period in question, but has anyone seriously
> looked at the records of pipemaking workshops to see if binford's formula
> correlates with records on advances in production techniques?
> and are these things bored out (drilled after manufacture, which i assume
> not to be the case, given that i would expect that this would result in a
> lot of breakage) or is the hole made before the pipe is fired, in which
> case, are you estimating from the size of the bore before or after
> shrinkage?
> ----- Original Message -----
> >
> > Y = 1931.85 - 38.26X
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