NIEPCE'S PROCESS n.
A process, now no longer used, invented by J. N. Niepce, a French chemist, in 1829. It depends upon the action of light in rendering a thin layer of bitumen, with which the plate is coated, insoluble.
NITROGEN n.
ee state, and as such is incapable of supporting life (hence the name azote still used by French chemists); but it forms many important compounds, as ammonia, nitric acid, the cyanides, etc, and is a constituent of all organized living tissues, animal or vegetable. Symbol N. Atomic weight 14. It was formerly regarded a…
NOISETTE n.
A hybrid rose produced in 1817, by a French gardener, Noisette, of Charleston, South Carolina, from the China rose and the musk rose. It has given rise to many fine varieties, as the Lamarque, the Marechal (or Marshal) Niel, and the Cloth of gold. Most roses of this class have clustered flowers and are of vigorous grow…