1016 



INDEX. 



Molecular changes, a source of Animal Heat, 

 882. death, 706. movements, 129 



MOLLUSCA. Characters and Clnsses. 103, 107. 

 Prehension of food, 573. Salivary glands, 



581. Alimentary canal, 589. Nervous sys- 

 tem, 330. Liver in, 593 Circulation, 696. 

 Renal organs, 789 Respiration. 866, 870, 

 871. Touch, 371, 373. Taste, 380. Smell, 

 392. Hearing, 414. Sight, 477. Locomo- 

 tion on solids, 182; in fluids, 188. Prehen- 

 sion, 198. Luminosity, 891. Ovaries and 

 ova, 948. Development of, 935, 953. Heat 

 of, 972 



MOLLUSCOIDA. Characters and Classes, 108. 

 Prehension of food in, 573. Pharynx in, 



582. Alimentary canal in, 590. Liver, 

 594. Circulation, 696. Respiration, 871. 

 Touch, 371, 373. Smell, 392. Hearing, 

 414. Sight, 477. Locomotion in fluids, 

 ]88. Prehension, 198. Luminosity. 891. 

 Nervous system, 331 



Monocotyledons, or Endogens, 118 



Monoecious Animals, 936 



Monophyodonts, 971 



MONOTREMATA. Digestive organs, 586. 

 Mammary glands, 766. Sight, 474. Cere- 

 brum, 322, 323, 324. Implacental, 959 



Mortality from epidemics and contagious dis- 

 eases, 860, 861 



Mortification, 707 



MOTION, 93, 128, 301. Ciliary, 146. Muscu- 

 lar, 130. Sarcodous, 149. Of blood through 

 the arteries, 658-666; through the capil- 

 laries, 673-677; through the veins, 677, 

 684. In vegetables, 151. Passive organs 

 of, 93. Active org;ms of, 93. Production 

 of, 99. Knowledge of, 463 



Motor fibres of nerves, 222 ; oculi nerves, 

 250 r 263 



Motor power, source of, 913-917, 918, 929 



Motorial centre, 286. stimulus, path of, 

 in spinal cord, 271 



MOUTH, 498. Mucous glands of, 520 



MOVEMENTS, automatic, 304; consensual or 

 sensori-motor, 301, 302; emotional, 302, 

 303; ideational or ideo motor, 301, 304; 

 instinctive, 301, 302; involuntary, 301; 

 reflex or excito-motor, 301-303; sensori- 

 motor, 301, 302; voluntary, 301 ; rhythmic, 

 304. Of Animal sarcode and protoplasm, 

 149. Of Man and Animals, 151. Regula- 

 tion of, 94, 218, 234 



Mucin, 73, 766 



Mucous membranes, 63, 994. Action of, 766 



Mucus, 64, 766. Chemical composition, 766. 

 Use, 767. Acts as a ferment, 767, 778, 784 



Miiller, ducts of, 973 



Murexid, 779 



Murmurs, respiratory, 814. cardiac, 657 



Muscse volitantes, 468 



MUSCLES, 21, 94. Development of, 960, 962. 

 Enlarged by exercise, 704. Fixation of, 

 49. Use of, in locomotion, 158. Elasticity 

 of, 134. Heat of, 874. Structure of, 49. 

 Of mastication, 497-499 ; cheek, 499 ; 

 tongue, 499, 500 ; soft palate, 501 ; pharynx, 

 502. 503 ; inspiration, 807-809 ; expiration, 

 812, 813; eyeball, 420; middle ear, 395, 

 405 ; larynx, 022 



Muscular contractility, 130; cause of, 142; 

 duration of, 135; contraction, phenomena 

 of, 131; heat produced by, 136; phenome- 



na accompanying, 136. currents of elec- 

 tricity, 138 ; determined by galvanometer, 

 138. fibres, plain or unstriped, 47, 990 ; 

 striped or striated, 48, 990. irritability, 

 88, 130. sensations, the sixth sense, 

 342. sense, 134, 287, 290, 348. 

 sound, 136. tissue, 47, 990, 997 ; com- 

 position of, 78. tonicity, 135, 278 



Musk of the musk-deer, 790 



Myopia, 445 



MYRIAPODA. Digestive organs, 591. Diges- 

 tive glands, 581, 591. Circulation, 697. 

 Renal organs, 790. Respiration, 866. 

 Touch, 372, 373. Sight, 479. Locomotion, 

 183 



Nails, structure of, 358. Development of, 

 994 



Narwhal, tusk of, 576 



Nasal duct, 418. cavities, 30 



Nausea, 351 



Necrosis, 999 



Neoplasia, 706 



Nerve-cells, 50, 232, 991. cords, 235. 

 currents, electrical, 225. fibres, af- 

 ferent, efferent, and reflex, 222 ; motor and 

 sensory, 222; gray or gelatinous, 51, 951 j 

 white or tubular, 51, 951 



Nerve-force, 232 



Nerve-root, 53 



Nerve-trunk, 53 



Nerves of respiration, 265, 815 



NERVES, 29, 94. Of the internal senses, 286. 

 Action on muscles, 229. Electrotonicity, 

 227. Electropolarity, 931. Functions. 219. 

 Mode of action, 231. Modes of termination, 

 53. Connection with centres of sensation, 

 267. Rate of conduction in, 223. Respi- 

 ratory, 265, 816 



Cranial, 249. First pair, or olfactory, 



249, 263. 383. Second pair, or optic, 250, 

 263, 419. Third pair, or motores oculi, 



250, 263. Fourth pair, pathetic, or troch- 

 lear, 250, 264. Fifth pair, trigeminal, or 

 trifacial, 250, 264. Sixth pair, abducent, 



251, 264. Seventh pair, portio mollis, or 

 auditory, 251, 399. 411; portio dura, or 

 facial, 251, 264. Eighth pair, glosso-pha- 

 ryngeal, 251, 265, 329 ; pneumogiistric or 

 vagus, 252, 265 ; spinal accessory, 252, 266. 

 Ninth pair, or hypoglossal, 252, 267, 329. 

 Functions of, 263. Number of fibres in 

 each, 252 



Spinal, 253. Cervical, 253, 254. 



Coccygeal, 253, 254. Dorsal, 253, 254. 

 Lumbar, 253, 254. Sacral, 253, 254. 

 Functions, 260. Roots, 254. Anterior 

 roots, 253. Posterior roots, 253. 269 

 Nervous force, 931. plexuses, 53, 255. 

 substance, composition of, 78 ; properties 

 of, 219. system and its functions in 

 animals, 318 ; bilateral or double action of, 

 312; cerebro-spinal. 235 ; sympathetic, 235; 

 development of, 963 ; effect of, on Animal 

 Heat, 885 ; its functions, 234 ; its structure, 

 235 ; functions of different parts, 259. 

 influence on absorption, 618; on heart's 

 action, 652,653,654; on nutrition, 311, 

 312, 705 ; on sugar-forming function of 

 liver, 282, 311, 748, 750; on secretion, 311, 

 312, 756, 757 ; on secretion of saliva, 265, 



