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Brother Buzz

(39,843 posts)
5. Oil seeps, like, say, La Brea Tar Pits
Sat Apr 15, 2017, 10:20 PM
Apr 2017

Asphaltum and crude bitumen are waterproof, and were one of the first 'super glue epoxies' know to man. I suspect the dentist was an arrow or spear maker because the tar adhesives were used extensively to fix points to shafts.

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