650 



INDEX. 



influence of, on voice, 443 ; 

 of heart, 341 ; of larynx, 438 ; of 

 liver, 473 ; spinal, i. 300 ; of nose, 

 ii. 7 ; of spleen, 516 ; of stomach, 

 191 ; of taste, i. 443 ; termination 

 of in skin, 412 ; of uterus, ii. 557 ; 

 of villi, 229 



Nerves, auditory, portio mollis, ii. 

 85 ; portio dura, 86 ; chorda 

 tympani, 70 ; cochlear, 81, 86 ; 

 posterior auricular, stylo-hyoid, 

 submastoid, 106 ; eighth pair, 

 115; excitor and motor, i. 305 ; 

 facial, function of, ii. 106 ; fourth 

 pair, 103 ; fifth pair, 7 ; motor por- 

 tion of, 111 ; distribution of, 112; 

 function of, 112; nasal branch of, 

 40 ; ciliary, 40 ; function of, how 

 determined, i. 303 ; glosso-pharyn- 

 geal, ii. 109, 116; experiments on, 

 445 ; branches to ear, 86 ; ninth, 

 7 ; function of, 109 ; olfactory, 7 ; 

 opthalmic, 7 ; of Jacobson, 86 ; in- 

 ferior cardiac, 138 ; laryngeal, effects 

 of pressure upon, 445 ; nasal, con- 



. nexion with opththalmic ganglion, 

 134 ; optic, 17, 37 ; petrosal, 135 ; 

 of Pacinian corpuscles, i. 398 ; pala- 

 tine, ii. 135; pneumogastric to heart, 

 341 ; portio dura, 42 ; sixth pair, 

 104; splanchnic, 138; spinal ac- 

 cessory, course of, 127 ; submaxil- 

 lary, 7 ; suboccipital, i. 301 ; super- 

 ficial petrosal, ii. 106, 116 ; sympa- 

 thetic, to heart, 341 ; third pair, 

 action of, 48, function of, 102, to 

 thyro-hyoid and genio-hyoid mus- 

 cles, 109 ; Vagus, 119, anterior pul- 

 monary branches of, 120, cervical 

 cardiac branches, 120, cesophageal, 

 posterior, pulmonary, pharyngeal, 

 superior and inferior laryngeal, 

 tracheal, and thoracic branches, 

 120 ; vestibular, 84 ; Vidian, 135 



Nervi, molles, ii. 136 ; pathetici, 103 



Nervous actions, examples of, i. 201, 

 230 ; their connexion with mind, 

 203, 236, 262; physical nervous 

 actions, 204 ; laws of the nervous 

 force, 233 236 5 course of nervous 

 power in the centres, 291 ; theory 

 of certain nervous actions, 331 ? 

 many need a double stimulus, 333 ; 

 in vomiting, ii. 214 



Nervous centres, definition, i. 205$ 

 arrangement of tubular and vesicu- 

 lar elements in, 215 ; investing 

 membranes, 224, 249 ; structure of 

 ganglia, 224; in the invertebrata, 



226 ; spinal cord, 226 ; medulla ob- 

 longata, 263 ; cerebellum, 269 ; 

 mesocephale, 273 ; cerebrum, 275 ; 

 inferences upon function of, 374 



Nervous and electrical forces, i. 231 ; 

 compared, 237 



Nervous matter, vital properties of, 

 i. 55, 231 ; two forms of, vesicular 

 and fibrous, 205 ; physical and che- 

 mical properties of, 206 ; fibrous 

 form of nervous matter, 208 ; tu- 

 bular fibre, its structure, 208 ; gela- 

 tinous fibre, its structure, 211 ; 

 vesicular nervous matter, simple 

 and caudate vesicles, 212; deve- 

 lopment of nervous matter, 227; 

 regeneration of, 228 



Nervous power, course of, i. 291 



Nervous system of animal life, i. 205 ; 

 of organic life, 206 ; arrangement 

 in vertebrate and invertebrate ani- 

 mals, 246 ; development of, ii. 599 ; 

 effect of lesions upon animal heat, 

 429 ; influence of, upon animal heat, 

 428 



Neural arch of vertebrae, ii. 583, 597 



Newport, Mr., on the generation of 

 carbonic acid by bees, ii. 407 ; on 

 the impregnation of the ovum, 549, 

 569 ; on the nervous system of 

 myriapoda, i. 326 ; on the spinal 

 cord, 325 ; on the temperature of 

 insects, ii.418 



Nipple, ii. 626 ; erection of, i. 407 ; 

 ii. 626 



Nitrogen, exhalation of, ii. 410 ; im- 

 portance of, in food, 155 



Nobili, on animal electricity, i. 379 



Nodal lines, i. 89 



Noise, definition of, ii. 87 



Nose, ii. 4 



Nostrils, ii. 2 



Nucleated nerve filaments of oli 

 tory region, ii. 9 



Nuclei of capillary vessels, ii. 329 



Nurse in metagenesis, ii. 530 



Nutrition of heart, ii. 341 



Nutritive food, ii. 154 



Nutritive centre, ii. 613 



OBSTRUCTION, effect of, upon the ac- 

 tion of the intestines, ii. 237 



Ocelli, ii. 14 



Ocular spectra, ii. 53 



Odours, appreciation of, ii. 12 ; offseces, 

 cause of, 267 ; occasioning syncope, 

 i.391 



(Esophagus, ii. 188 ; motions of, de- 

 pendent on laryngeal nerves, 122 



