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Excerpt: With the end of Lewis's Philadelphia training, the chronometer, the sextants and much more were shipped by wagon to Pittsburgh, the place of staging for the trip by keelboat down the Ohio River to the Missouri, eventually to really reach the Pacific Ocean itself. These instruments were amongst the most "high-tech" items on the voyage, and they had to withstand difficult portages and overland hikes. Because of Jefferson's concentration and emphasis on mapping the new lands, their use was a significant part of Lewis's training. With difficulty, they contributed to the scientific efforts of the Expedition, and data may not have always been accurate. |
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