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| | Percival Lowell -- Encyclopædia Britannica (Site not responding. Last check: 2007-10-19) |
 | | The brother of Abbott Lawrence Lowell and Amy Lowell, Percival was born on March 13, 1855, in Boston. |
 | | Percival and Abbott's sister, Amy, was born Feb. 9, 1874, in Brookline, Mass. |
 | | Overview of this educational TV program on the famous American astronomer Percival Lowell, the building of the Lowell’s Observatory in Flagstaff, Arizona, and the Observatory's contributions to the field of astronomy, by Discovery Channel School. |
| www.britannica.com /eb/article-9049156 (593 words) |
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