Contagion and contagiousness refers to how easily the spread of Neurosyphilis is possible from one person to another. Other words for contagion include infection, infectiousness, transmission or transmissability. Contagiousness has nothing to do with genetics or inheriting diseases from parents.
Tacoma was preferred in the city of Tacoma. In 1890, the United States Board on Geographic Names declared that the mountain would be known as Rainier. Following this in 1897, the Pacific Forest Reserve became the Mount Rainier Forest Reserve, and the national park was established three years later.
Mount Hood is located in Oregon and can be seen from quite a few places along the Columbia River. Mount Rainier is located in Washington State north of Mount St. Helens, and can be seen from the lower Columbia area near Longview, Washington and downstream near Wallace Island.