BOOK II. THE SELF-PRESERVATIVE 

 INSTINCT 



CHAPTER IV 



THE INSTINCT OF SURVIVAL 



THE instinct of survival or of self-preservation is, 

 in general, the controlling animal instinct, notwith- 

 standing that its outward expressions may be 

 temporarily checked by the intrusion of other funda- 

 mental and highly organized feelings or impulses. 

 The instinct most likely to intrude on the survival 

 instinct is the instinct of sex, which stands in the 

 same relation to the preservation of the race as does 

 the survival instinct to the preservation of the indi- 

 vidual. And in man, other instincts of dignity or 

 importance, as that of imitation, of curiosity, or of 

 sympathy, may for a time supplant the outward 

 signs of the survival instinct, although it is clear that 

 these reactions are functions of relatively recent 

 origin growing out of the more fundamental ones. 



It has been already pointed out that the various 

 cells of the animal organism are endowed with dis- 

 tinct and elaborate powers of defense, powers on 

 which the maintenance of the life of the individual 

 is closely dependent. Since these powers reside in 

 the organization of the cells, expressing mainly their 



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