USED IN NATURAL HISTORY. 



103 



longing, or relating to the nose. 

 Nasal fossae. See Fossa. 



NA'SSA. Lat. A net, a snare. A 

 genus of gasteropoda. 



NA'TANT. Swimming, or floating. 



NA'TATORY. fr. lat. nato, I swim. 

 Swimming, floating. 



NA'TATIOW. fr. lat. natatio, swim- 

 ming. The act of swimming, or 

 supporting one's self, or moving 

 upon the water. 



NA'TICA. Lat. Name of a genus 

 of gasteropods. (Jig. 20, p. 34 

 Book v). 



NATROX. A subcarbonate of soda. 



NATURAL JOINT. In mineralogy, 

 the plane in which any two la- 

 mime of a crystallized substance 

 are united. 



NATURAL ORDER. In botany, that 

 arrangement in which groups of 

 plants are formed by the associa- 

 tion together of those genera, 

 which have the greatest resem- 

 blance one to another in all their 

 characters taken together. 



NAUCRA'TES. fr. gr. watts, a vessel; 

 krated, I have power over. Sys- 

 tematic name of certain fishes. 



NAUCUM. In botany, the exterior 

 coat of a drupe. 



NAUSEA. fr. gr. waus, a ship; be- 

 cause those unaccustomed to sail- 

 ing are so affected. Sickness. A 

 desire to vomit. 



NAU'TILUS. fr. gr. Nautilos, name 

 of the Argonaut. A genus of ce- 

 phalopods. 



NAVI'CULA. Lat. A little boat. 



NAVI'CULAR. Boat-shaped. 



NECK. In botany, the upper, taper- 

 ing end of bulbs. 



NECTAR. fr. gr. nektar, formed from 

 ne, a negative; ktao, I kill, be- 

 cause nectar imparted immorta- 

 lity. The drink of the heathen 

 gods. A certain product of flow- 

 ers, which is found in the corolla, 

 but which does not belong to it. 



NECTARI'FEHOUS. Bearing honey. 



NE'CTABT. That part of a flower 



which secretes nectar or honey, 

 (p. 76, Book vii). 



NEMATONEU'RA. fr. gr. wema, nema- 

 tos, thread ; neuron, a nerve. Ow- 

 en's name for a division of the 

 Radiata of Cuvier, in which the 

 nervous matter is filamentous. 



NE'MORAL. fr. lat. nemus, a wood. 

 Belonging or relating to a wood 

 or grove. 



NEOCO'MIAN and NEOCOMIEN. Fr. 

 The lower beds of the cretaceous 

 system in the south of France 

 and elsewhere, are described by 

 the French geologists under this 

 name. 



NEPTU'NIAN. From Neptune, god 

 of the sea. Belonging or relating 

 to water. 



NERI'NEA. A genus of fossil uni- 

 valves, resembling both cere'thi- 

 um and turritella. (p. 63, Book v). 



NERI'TA. Lat. A shell-fish. A ge- 

 nus of gasteropods. (p. 51, Book v). 



NERITI'NA. Lat. Dimin. of Nerita. 

 A genus of gasteropods. (p. 51, 

 Book v). 



NERVA'TION. Venation. The dis- 

 tribution of the vascular tissue 

 through the limb of the leaf. (p. 

 33, Book vii). 



NERVED. In botany, marked with 

 nerves, so called, though not or- 

 gans of sensibility. 



NERVES. In botany, parallel veins; 

 the strong veins upon leaves or 

 flowers. In zoology, rounded 

 cords of nervous matter. 



NEHVIMOTION. The power of mo- 

 tion in leaves. 



NERVINE. ") In botany, composed of 



NERVOSE. 3 nerves. 



NERV'OUS. Belonging or relating to 

 the nerves. 



NER'VURES. Veins of leaves. The 

 horny tubes in the wings of insects, 

 which serve to stretch them. 



NESTOR. An extinct bird. 



NEURO'PTERA. -fr. gr. neuron, a 

 nerve ; pteron, wing. An order 

 of insects. 



