11![](https://www.pdfsearch.io/img/7006135fd82ba02ca04c3f4b1477fcf1.jpg) | Add to Reading ListSource URL: www.studythepast.comLanguage: English - Date: 2012-01-06 11:07:23
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12![http://www.sciencemag.org/cgi/content/full[removed]153a http://www.sciencemag.org/cgi/content/full[removed]153a](https://www.pdfsearch.io/img/3de83b0b96bee4212d50bf69ccb2f78b.jpg) | Add to Reading ListSource URL: www.tjheritage.orgLanguage: English - Date: 2012-11-01 19:45:42
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13![Layout 1 Layout 1](https://www.pdfsearch.io/img/84f7fe8839b74727635604168269ff54.jpg) | Add to Reading ListSource URL: www.tjheritage.orgLanguage: English - Date: 2012-11-01 19:39:03
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14![](https://www.pdfsearch.io/img/b15b63055bce1296ae90af1bad4ed5fb.jpg) | Add to Reading ListSource URL: www.tjheritage.orgLanguage: English - Date: 2012-11-01 19:19:15
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15![](https://www.pdfsearch.io/img/44c133a6170662bda9ed4354c971e666.jpg) | Add to Reading ListSource URL: www.monticello.orgLanguage: English - Date: 2010-09-29 14:11:28
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16![](https://www.pdfsearch.io/img/80175fbe1e09e090c64fcc397f5dd8c1.jpg) | Add to Reading ListSource URL: www.monticello.orgLanguage: English - Date: 2010-09-29 14:11:38
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17![](https://www.pdfsearch.io/img/bb110b91428e94798780dfae5be12cfe.jpg) | Add to Reading ListSource URL: oieahc.wm.eduLanguage: English - Date: 2010-05-27 15:52:51
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18![](https://www.pdfsearch.io/img/e416600f13bea11a8b3c4cea57eef32b.jpg) | Add to Reading ListSource URL: studythepast.comLanguage: English - Date: 2010-08-25 08:57:41
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