54:8 



INDEX. 



Myo-malacia, 858-359. 

 Myxomata, 526-531. 



Nageli, on corpora araylacea, 320. 



Nails, body of, composed of cells, 61, 

 65 ; structure of, 63 ; growth of, 63 ; 

 disease of, 64-65. 



Navel, varieties of, how produced, 126. 



Necrobiosis, definition of, 356 ; how dis- 

 tinguished from necrosis, 358 ; ends in 

 softening and disintegration, 358-359. 



Necrosis, distinction between, and necro- 

 biosis, 358 ; of bone, limits of territo- 

 ries of bone-cells well shown in, 462-463. 



Neoplasms. See New-Formations. 



Nephritis, parenchymatous and intersti- 

 tial, 424. 



Nerve-cells. See Ganglion-cells. 



Nerve-fibres, primitive, their membrane, 

 medullary sheath, and axis-cylinder, 

 267 ; white and grey, distinction be- 

 tween, 267-268 ; myeline of, 269-271 ; 

 grey atrophy of, 271 ; axis-cylinder 

 (electrical substance) essential consti- 

 tuent of, 271; different breadth of; 

 272-273; terminations of, 274-292 in 

 Pacinian bodies, 274-276 in tactile 

 bodies, 270-278 in loops, nowhere 

 met with, 284, cf. 274, 278 supposed 

 in epithelium-like structures (in mu- 

 cous membrane of nose and tongue) 

 284-285 in cochlea, 285 in retina, 

 285-289 in plexuses (electrical organ 

 of silurus, 290, and submucous tissue 

 of intestines (human) 291-292 ; rami- 

 fication of, 289-290 ; coin'se and origin 

 of, in spinal cord, 305-306. 



Nerve-territories, in skin larger than 

 vessel-territories, 281. 



Nerves, seldom found in new-formations, 

 92; peripheral, structure of, 265; fas- 

 cicular arrangement of, 265 ; intersti- 

 tial tissue of, 265, 317-318 ; grey atro- 

 phy of, 271 ; terminations of, 274-292 ; 

 of special sense (olfactory, auditory, 

 optic) 284-289 ; electrical processes 

 constantly going on in, 325 ; changes 

 in electrical state of, produced by ex- 

 citation (irritation), 328. 



Nervous Centres, 294-320 ; colour of 

 grey matter of, not due to ganglion- 

 cells, 294 ; different kinds of ganglion- 

 cells in, 296-300 ; interstitial substance 

 of (neuro-glia) not nervous but a kind 

 of connective tissue, 310-311 ; corpora 

 amylacea of, 317-320 ; made up of an 

 infinite number of separate, very mi- 

 nute centres, 322-333. 



Nervous Plexuses, in Silurus, 290, 300- 

 301 ; in submucous tissue of intestines, 

 291-292. 



Nervous System, 87, 263-320; its pre- 

 tended unity, 266, 322-323 ; its com- 

 position, 263-264 ; fibrous constituents 

 of, 265-294 ; nervous centres (ganglio- 

 nic apparatuses), 294-320. 



Neurilemma, 266 ; its relation to peri- 

 neurium, 318. 



Neuro-glia, 313; 315-316 (see 310-311) ; 

 definition of, 315 ; a kind of soft con- 

 nective tissue with corpuscles, 315- 

 316, cf. 313; also found in olfactory 

 and auditory nerves, 317-318. 



Neuro-Pathology. See Solidism. 



New Formation, correspondence between 

 embryonic and pathological, 442-443; 

 by means of simple cell-division, 443- 

 444; endogenous, of cells, 444-445; 

 different kinds of hyperplastic (direct 

 and indirect) and heteroplastic, 446- 

 448 ; of vessels, first heteroplastic and 

 then hyperplastic, 447. 



New-Formations. See Pathological Tis- 

 sues. 



Nitrate of Silver, results of external and 

 internal use of, 247-248, cf. 254. 



Norn a, 517. 



Nuclei, constancy of form of. 34 ; forma- 

 tion of (Schleiden's theory), 35-36 ; 

 their importance in maintaining life of 

 cells or other elements containing 

 them, 37 ; essential to growth of parts, 

 38 ; division of, see Division of nuclei. 



Nucleoli, origin of (according to Schlei- 

 den and Schwann), 35 ; division of, in 

 formative irritation, 345. 



Nutrition: its channels, 101-118; con- 

 veyance of nutritive juices, 119-139; 

 and circulation, 140-165; of liver, 102- 

 104; of bone, 115; of teeth, 115; of 

 cornea, 116 ; of semi-lunar cartilages, 

 116; of tendons, 120, 123 ; of mucous 

 tissue of umbilical cord, 127-130 ; im- 

 portance of capillary membrane in, 

 153 ; no directly regulating influence 

 exercised upon, by hypersemia, 156- 

 157. 



Nutritive districts, in tendon, 124 ; see 

 Cell-territories. 



Nutritive Irritability, 334-345 ; often 

 tends to death of a part, 334 ; a pro- 

 perty of individual elements of parts, 

 not effect of nervous influence, 336. 



Nutritive Irritation, 334-345 ; number 

 of constituent elements of a part not 

 increased in, 334 ; often cause of death 

 of a part, 334 ; comprises a part of 

 what is ordinarily called inflammation, 

 335 ; in kidney, 335-336 ; in cartilage, 

 336-337 ; in skin, 337 ; in cornea, 

 338, 340-342, 344-345 ; effects of, not 

 due to nervous influence, but to action 



