Lewis and Clark: forever paired for their epochal first crossing of the continent in 1804-1806, darlings of the young republic, and the pride of Thomas Jefferson because they made his dream of a nation between two oceans come true.
Lewis and Clark: two great but very different men.
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In the 20 years that have passed since the publication of the first edition, both Poison Control Centers and Emergency Departments have witnessed an expansion in the number and variety of poisonings caused by toxic plants. At the same time, there is a proliferation in the diversity of plants in our [...]