NERKA n.
The most important salmon of Alaska (Oncorhinchus nerka), ascending in spring most rivers and lakes from Alaska to Oregon, Washington, and Idaho; --called also red salmon, redfish, blueback, and sawqui.
NEWTONIAN a. 2 definitions
ern or experimental philosophy (as opposed to the theories of Descartes and others), and, most frequently, to the mathematical theory of universal gravitation. -- Newtonian telescope (Astron.), a reflecting telescope, in which rays from the large speculum are received by a plane mirror placed diagonally in the axis, a…
NIAGARA PERIOD n.
system, embracing the Medina, Clinton, and Niagara epoch. The rocks of the Niagara epoch, mostly limestones, are extensively distributed, and at Niagara Falls consist of about eighty feet of shale supporting a greater thickness of limestone, which is gradually undermined by the removal of the shale. See Chart of Geolog…
NOBEL PRIZES n.
t his entire estate for this purpose. They are awarded yearly for what is regarded as the most important work during the year in physics, chemistry, medicine or physiology, idealistic literature, and service in the interest of peace. The prizes, averaging $40,000 each, were first awarded in 1901.