Throughout the book Boll and his colleagues continuously stress the significance of the many important contributions that psychology has made to medical science's knowledge and understanding of the causes and consequences of physical and emotional illness.
There are more than 60 dams in the Columbia River watershed in the United States and Canada. Tributaries of the Columbia River and their dammed tributaries, as well as the main stem itself, each have their own list below. The dams are listed in the order as they are found from source to terminus.
The combination of high volume and stable canyons made the Columbia an ideal hydropower river. Today there are 14 dams on the mainstem Columbia, beginning with Bonneville at river mile 146 and ending with Mica at river mile 1,018, and more than 450 dams throughout the basin.