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| Sep 11, 2009 10:15 am |  ljordan07 |
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| Sep 11, 2009 10:10 am | ljordan07 |
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| Sep 11, 2009 10:03 am | ljordan07 |
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| Sep 11, 2009 10:02 am | ljordan07 |
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| Sep 11, 2009 9:55 am | ljordan07 |
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| Sep 10, 2009 10:27 am | ljordan07 |
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| Sep 10, 2009 10:21 am | ljordan07 |
"http://www.pa.msu.edu/sciencet/ask_st/100792.html, http://en.wikipedia.org/wiki/Joseph_Priestley, " | |