INDEX 



1049 



Myograph, pendulum, 644 



simple, 179, 707 



spring, 643, 713 

 Myopia, 915 

 Myosin, 672, 673, 715 

 Myosinogen, 672, 715 

 Myotatic irritability, 802, 813 

 Myxoedema and thyroidectomy, 560 



Nasal secretion, 435 

 Near-point of vision, 915, 917, 987 

 Necturus, ablation of cerebral hemi- 

 spheres in, 841 

 equilibration in, after destruction 



of internal ear, 836 

 intracorpuscular crystallization in 



erythrocytes of, 62 

 Negative phase in coagulation, 38 

 Negative variation. See Action current 

 Nerve-cells, 677 



changes in, after section of axon, 



691 



in fatigue, 874 

 with age, 755 

 growth of, 754 

 number of, in brain, 757 

 Nerve, chemical changes in, 680, 881 

 composition of, 6go, 881 

 conductivity of, 686 

 crossing, 694, 867, 868 

 degeneration of, 691 



chemistry of, 692 

 double conduction in, 687 

 effect of temperature on excita- 

 bility and conductivity of, 68 1 

 effect of voltaic current on, 683, 



741 



fatigue of, 680 

 isolated conduction in, 689 

 minimum stimulus of, 68 1 

 pattern in regeneration, 695 

 polarization of, 726 

 refractory period of, 680 

 regeneration of, 694 



chemistry of, 693 

 stimulation of, 680 

 structure of, 677 

 Nerve-ending, motor, 634, 635 

 Nerve-fibres, enumeration of, 775 



size of, 745, 758 

 Nerve impulses, ' antidromic,' 165, 688, 



701 



nature of, 679 

 velocity of, 689, 713 

 in reflex arcs, 800 

 temperature co-efficient 



of, 679 



Nerve -muscle preparation, to make, 703 

 Nerves, classification of, 702 



cutaneous, phenomena after sec- 

 tion of, 975-981 



Nerves in situ, law of contraction for 



686, 743 

 trophic, 699 



Nervous activity, chemistry of, 880, 881 

 tissue, effects of extracts of, 569 



reaction of, 691 

 Nervus erigens, 164, 165, 167, 301. 473, 



884 



pudendus, vaso-motors in, 164, 167 

 Neural axis, primitive, 759 



canal, development of, 746 

 Neuroblasts, 746, 754 

 Neurofibrils, 748, 750 



theory of continuity of, 751 

 Neurogenic hypothesis of heart-beat, 



130 



Neuroglia, 758, 817 

 Neurokeratin, 690 

 Neurons, 677, 748-757 



development of, 747, 752, 754 

 fibrils in, 748 ' 

 nutrition of, 756 

 processes of, 749, 752 

 scheme of motor, 753 

 varieties of, 753 

 Nicotine, action of, on ganglion cells of 



heart, 150 

 of salivary glands, 363, 



365 



on intestinal movements, 307 

 on skeletal muscle, 634, 635 

 on sympathetic cells, 165 

 Night-blindness, 948 

 Ninth nerve. See Glosso-pharyngeal 

 Nissl's bodies in nerve-cells, 749, 755, 



873 

 chromatolysis of, 369, 745, 



756, 873, 874 

 method of staining, 749 

 Nitrogen, execretion of, in starvation, 



532 



after muscular work, 538 

 variation of, with protein in 



food, 535, 6l2 

 estimation of total, 482 

 in proteins, i, 529 

 of body, 528 

 requirement, minimum, 533, 544, 



539 



starvation, 531 



Nitrogenous equilibrium, 529, 533 

 metab lism, 496 



influence of fat and carbo- 

 hydrates on, 523, 534 

 of muscular work on, 537, 



538 



in starvation, 530, 532 

 laws of, 535. 537 

 Noeud vital, 814 

 Normal solutions, 4^9 

 Normoblasts, 21 



