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<p>[QUOTE=&quot;AuDragon, post: 366707, member: 6974&quot;]Wow, HT, what a great piece of research. Congratulations and thoroughly fascinating article. How inventive we humans are when it comes to things like building fire into a wall to heat the house. Thanks so much for solving the riddle. You get the Sherlock Holmes Star of the week.[/QUOTE]</p><p><br /></p>

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