Replies

Timeline of the Development of Cement

45 posted on 12/20/2007 6:52:59 PM PST by Fred Nerks (FAIR DINKUM!)

To: Fred Nerks

Thanks. I never knew about these water systems. I wonder how many are lost and forgotten underground?

47 posted on 12/20/2007 7:42:05 PM PST by blam (Secure the border and enforce the law)

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