ANTAEUS THE GIANT. 593 



tables from Hufeland and Haller give their results of ob- 

 servations on the relative duration of human life : 



HUFELAND. Of a hundred men born, HALLER. Of men who lived 



50 die before the tenth year. from 100 to 110 years the 



20 between 10 and 20 instances have been 1000. 



10 20 " 30 110 to 120 GO 



6 30 40 120 " 130 29 



5 40 " 50 130 140 15 



3 50 " 60 140 150 6 



Six only live to be above 60. 169 1 



For interesting particulars, see tables of the physiologists 

 and writers on hygiene already quoted. 



Haller and Buffon treat the question of human longevity 

 in two ways : historically and physiologically. The his- 

 torical side of the question would embrace the recitation of 

 all facts known of the natural, ordinary, and extreme dura- 

 tion of life. The physiological aspect of the problem in- 

 volves the contemplation of the great natural phases of 

 development of the species, as of gestation, period of growth, 

 etc. 



Buffon's formula of the duration of the lives of animals 

 is, they exist six or seven times as long as they are growing 

 or attaining perfect adult development. He adduces the 

 examples of man, the dog, the horse, etc. 



Hufeland asserts : " One may lay it down as a rule, that 

 an animal lives eight times as long as it grows. Now, man 

 in a natural state, where the period of maturity is not 

 hastened by art, requires full twenty-five years to attain his 

 complete growth and conformation ; and this proportion will 

 give him an absolute age of 200 years, although not above 

 one in a thousand attain to the age of 100 years." 



Flourens admits that the " real physiological problem is 

 stated." He proceeds: "One thing only was unknown to 

 Buffon, namely, the certain sign that marks the term of 

 growth. I find this sign in the union of the bones with 

 their epiphyses : as long as the bones are not united to their 



50* 



