Human studies have reported developmental effects, such as CNS dysfunction, attention deficits, and minor craniofacial and limb anomalies, in the children of pregnant women exposed to high levels of toluene or mixed solvents by inhalation.
Contrary to popular belief, the expedition DID NOT begin in St. Louis, Missouri. The first entry in the Lewis and Clark Expedition Journals state that the journey began in Pit â¦ tsburgh, PA on August 30, 1803. Lewis, who had been assigned by Jefferson sailed down the Ohio River with supplies towards St. Louis.
Lewis and Clark's Expedition. In the early 1800s, a number of different expeditions were formed to explore the West (at the time, this was all the land west of the Mississippi River). The most famous expedition was the Lewis and Clark Expedition. This expedition was started because Thomas Jefferson hired Meriwether Lewis to explore the West.