THE DURATION OF LIFE. 35 



and complex substance which absorbs foreign material and changes 

 it into its own substance, in other words grows and multiplies ? 



And so, in discussing this question of life and death, we come at 

 last as in all provinces of human research upon problems which 

 appear to us to be, at least for the present, insoluble. In fact it 

 is the quest after perfected truth, not its possession, that falls to 

 our lot, that gladdens us, fills up the measure of our life, nay! 

 hallows it. 



D 2 



