PRINCIPLES OF PHYSIOLOGY. 



457 



Organism the, how far the general forces 

 of physical bodies belong to, 3 ; to 

 what extent the laws of mechanics 

 applicable to, 5; a sensible and in- 

 sensible, 52 ; an irritable and inirritable, 

 432 ; as a living animal, 600 



Organs, of the external senses, 55 ; as 

 mechanical machines, subject to same 

 laws, 177 ; effect of external sensations 

 on, 216 ; seat of the same nerve-actions 

 as the muscular system, 539 



Organs, the sexual,are extremely sensitive, 

 178; their functions may be induced 

 by the vis nervosa alone, 481 ; nerve- 

 actions from non-conceptional internal 

 impressions on, 340 ; all animals born 

 with, 654 ; as centres of animal forces, 

 673 



Pain, in what consists, 80; sensational 

 and intellectual, 88 ; action of, on the 

 organism, 136-200; its actions on the 

 mechanical machines, 204 ; its action 

 on the vital movements, 250, 333 



Passions, the, 91 ; each of, how com- 

 pounded, 93 ; what doctrines apply 

 to, 256 ; instinctive, 302 ; incidental 

 action of the primary, 305 ; actions of 

 the joyous, 306-308 ; actions of the 

 painful and distressing, 309-328 ; the 

 instinctive as nerve-actions, 562 ; their 

 sentient actions as nerve-actions, 563- 

 573 



Penis, effect of foreseeings and desires on 

 the, 178; Haller's opinion on the 

 swelling of its corpora spongiosa, 178 



Perceptions, sensational, 76 



Physiognomy, 166 



Physiologically free, as applied to con- 

 ceptions, 27, 89 



Pleasure, impression of, distinct from 

 that of pain, 80 ; sensational and in- 

 tellectual, 89 ; its action on the organ- 

 ism, 191 ; its action on the vital move- 

 ments, 250, 333; calm, more favorable 

 to health and life than when in excess, 

 252, 253 



Pleasure and pain, nature of their im- 

 pressions, 124 



Preservation, pain the sentinel of, 184 ; 

 impressions necessary to, in insentient 

 animals given by nature, 609 ; move- 

 ments, necessary to, effected by the vis 

 nervosa, 610 



Procreation, see Generation. 



Propagation of the species, instinct of, 

 262, iii, 289 ; its excitement and satis- 

 faction, 263 ; analysed, 273 ; its sensa- 

 tional stimulus, 289 ; its sentient as 

 nerve-actions, 560 ; as a period in the 

 life of an animal, 652-657 



Propensities, actions of the sensational, 

 260, 261 



Pulse, the arterial, how far may be a nerve- 

 action, 519, 520 ; influenced by all non- 

 conceptional impressions exciting mus- 

 cular action, 521 



Reasoning animal, a, 605 



Reasons, 88 



Reciprocal connection, defined, 345 ; of 

 the animal-sentient forces with the vis 

 nervosa, 590-597 



Reflection, the act of, 77 



Reflex action, of an external impression 

 on the heart, 515 ; of the brain in the 

 instincts, 564 



Reflexion, of an external impression in a 

 sentient brain, or ganglion, 365, 415, 

 ii ; see also Nerve-actions and impres- 

 sions, external and internal 



Regret, its nature and sentient actions, 

 312 



Reiz, so called contractility, 3 



Repose, the instinct for, its nature and 

 natural stimulus, 287; its nerve-actions, 

 558 



Respiration, the instinct of, 285; how 

 far a nerve-action in thenewly-bom,285, 

 286, 526 ; may take place independently 

 of brain or mind, 475 



Revenge, the desire of, an instinctive 

 passion, 301 ; a depressing passion, 322 ; 

 the heart's action in, 323; its union 

 with anger, 324 ; the special changes 

 by its sentient actions, 325 ; means of 

 controlling it, 326 ; may be induced 

 by the vis nervosa only, 572 



Reverie, [dichtet,] 237 



Schmerz, suffering, 80, 187, 195 



Secretion, animal, but sometimes a sen- 

 tient action, 172; may be a direct nerve- 

 action, 471-473 



SeelenwirJcungen, mental, sentient, or sen- 

 sational acts, 6, 99, iii 



Self-defence, the instinct of, 262, ii, 288 



Self-love, sensational, 280 



Self-preservation, the instinct of, 262, ii, 

 263 



Sense-like impression, a, 31 



Senselikeness, 32 ; its varying degree in 

 the conceptions, 112 



Sensation, the term used in a threefold 

 sense, 34 note\ precedes all other 

 conceptions, 65 ; a certain use of the 

 term proposed, 402 



Sensation, as used by Buffon, 402 



Sensational, 31 note', force, or sensi- 

 bility, 34 ; memory, 72 ; foreseeings 

 and expectations, see Foreseeings and 

 Expectations; pleasure and suffering. 



