466 



Index 



NEMATOMORPHA (G. nema, thread 



+ morphe, form) 307, 310, 426, 435 



NEMERTINAE, nemerti'ni (G. nemer- 



tes, true) 308, 426, 435 



A group of worms of uncertain 



position. 

 NEORNITHES, neor'nithez (G. neos, 



new + ornis, bird) 428 



A sub-class of Aves. Recent. 

 NEOSPORIDIA, neospdrid'ia (G. neos 



+ spora, seed) 144, 154 



A sub-class of Sporozoa. 



NEPHRIDIA, definition of 267 



NEPHRIDIOPORE, nefrid'iopor (G. 



nephros + poros, a passage) 260 



NEPHRIDIUM, nefrid'ium (G. nephros, 



kidney) 260, 21 If 



NEPHROSTOMY nef'rostom (G. 



nephros, kidney + stoma, mouth) . 



64, mo 



NEREIS PELAGIA, ne'reis (G. nereis, 



a sea-nymph) 281 



NERVE ARC, nerv (L. nervus, sinew), 



definition of 178 



NERVE, artery and vein 58 



Centers 116 



Vagus 65 



NERVOUS SYSTEM OF FROG. . . .65, 66 



Of fishes 362 



Of insects 361 



KERVURES, ner'vur ( L. nervus, 



sinew) 836 



One of the rib-like structures 

 which support the membranous 

 wings of insects. 

 NEURAL, nu'ral (G. neuron, nerve) . 



Arch 72 



Canal 66 



NEUROBLA STS, nu'roblastz (G. 



neuron + blastos, bud) 281 



Primitive nerve cells. 

 NEUROCHORD, ml'rokord (G. neuron, 

 nerve + chorde, string of gut), defi- 

 nition of- 275 



NEUROLOGY (G. neuron + logos), 



definition of 31, 40 



NEURON (G. neuron, nerve), defini- 

 tion of 115 



NEUROPTERA, nu'rop'tera (G. neuron 



+ pteron, wing) 426 



Animals having wings with a net- 

 work of nervures. 



An order of Neuropteroidea. 

 NEUROPTEROIDEA, nuropteroi'dea 

 (G. neuron, nerve + pteron, wing) . .426 

 A sub-class of Pterygogenea. 



NEWMAN, H. H 398 



NICTITATING MEMBRANE, nik'ti- 



tay'ting ( L. nicto, wink ) 4*> 



NIDAMENTAL GLANDS, nid'amen'- 



tal (L. nidus, a nest) 86 



NIGHTSHADE, nlt'shad (A. S. niht 

 scada, nightshade) 244 



NOCARDIA BOVIS 215 



Actinomyces 215 



NOCARDIOSIS 215 



NOCTILUCA, nok'tlloo'ka (L. nox, 



night + lux, light) 151, 152 



Phosphorescent forms. 



NODE, nod (L. nodus, knob) 204 



Of Ranvier 115 



NOSE MA APIS, no'sema (a new Latin 



word ) 154 



Bombycis 153 



NOTABLE MEN IN BIOLOGY 387 



NOTUM, no'tum (L. notum, back)... 338 

 The dorsal portion of an insect 

 segment. 

 NUCELLUS, nuseTus (L. dim. of nux, 



nut) 240 



The central region and chief part 

 of an ovule. 



NUCLEAR SAP, definition of 90 



NUCLEOLUS, nukle'olus (L. dim. of 



nucleus, kernel ) 89 



A rounded mass in nucleus. 

 NUCLEOPLASM, nu'kleoplazm, defini- 

 tion of 89 



NUCLEUS, nu'kleus (L. nucleus, ker- 

 nel) 89 



A complex spheroidal mass essen- 

 tial to the life of a cell. 



NUTRIENT • 63 



NUTRITIVE CELLS— 



Pole, definition of 105 



NUX VOMICA 286 



NYOTERIDIPHIL US HEX A OTEN US, 

 nik'teridif iltis (G. nykteros, by 



night + philos, friend) 851 



NYMPH, nimf (G. nymphe, bride). 332, 349 

 A stage following the larval in in- 

 sect metamorphosis. 



NYMPHOMORPHA 424 



An order of Pantopoda. 

 OBELI A, obe'lia (G. obelos, a spit) ..253 

 A genus of polyps. 



OBJECTIVE, definition of 174 



OBJECT OF SCIENCE 35 



OBLIQUUS, obli'kwus (L. oblique)... 79 

 OBTURATOR, ob'turator (L. obturare, 



to stop up ) 84 



OCELLI, plural of ocellus, definition 



of 329 



OCELLUS, osel'us (L. ocellus, a bulb 



or little eye) 342 



OCULINA SPECIOSA, ok'uli'na (L. 



oculus, an eye) 258 



The typical genus of the family 

 Oculinidae. 

 OCULOMOTOR, ok"ulomo'tor (L. 



oculus, eye + moveo, to move) 68 



Moving the eyeball. 

 ODONATA, odona'ta (G. odous, tooth). 426 



An order of Libelluloidea. 

 ODONTOCETI, odontose'ti (G. odous, 

 tooth + ketos, a whale) 426 



