138 ANIMAL-SENTIENT FORCES. [i. 



which are scarcely regularly developed in the depths of the mind, 

 to the special astonishment of the animal when conscious of 

 their operations; and which consequently give rise to the magical 

 (bezauberung) in instincts (263). Consequently, just as they 

 differ from the corporeal inducements of the instincts (264), so 

 they must be distinguished from the instinct itself, which is 

 the effort of the conceptive force excited by them, to develop 

 the foreseen agreeable sensation, or the contrary to the dis- 

 agreeable sensation, although they act in and with it at the 

 same time (80). Thus satiety is the agreeable foreseen sen- 

 sation in hunger ; in the instinct of self-defence, the foreseen sen- 

 sation is the contrary to the sensation of danger ; in the instinct 

 of propagation of the species, that of copulation ; and in the 

 instinct to give suck, that of emptying of the mammae (94, 268). 



271. The sentient actions of the stimuli of the instincts, as 

 such, are those of sensational pleasure and pain (88), and con- 

 sidered alone, change consequently the respiratory and cardiac 

 movements (250), but as foreseeings, they express imperfectly 

 the sentient action of the coming sensation (241). Conse- 

 quently, the vital movements are very strikingly altered in each 

 instinct (262, 258), and movements are partly excited in the 

 mechanical machines, similar to those which are fully developed 

 when the instinct is satisfied (257). 



272. The instinct itself, (which is only the effort of the 

 conceptive force to develop the foreseen sensation,) manifests 

 its influence in the mechanical machines, so as to develop the 

 sentient actions of the coming sensation as powerfully as it 

 possibly can, short of the actual contentment of the instinct, 

 or without the intervention of the true sensation therein fore- 

 seen. Their nature, laws, and characteristics, may be learnt 

 from previous statements. (Compare 257 — 261 ; also 274.) 



273. To each kind of sensational conceptions are usually 

 superadded others, which the mind connects therewith spon- 

 taneously, and at pleasure, and which develop their sentient ac- 

 tions at the same time, and incidentally to the preceding (219 

 — 224, 235, 246), nay, the direct sentient actions of the external 

 sensations, which play so important a part in the instincts, are 

 often felt, and induce subordinate sentient actions of sensations 

 (225, 226), and subordinate instincts which are often conjoined 

 with other instincts, as, for example, the instincts of jealousy. 



