20 WHAT IS LIFE ? 



in terms of it, and if it began to go wrong, or if it 

 did not go with perfect uniformity, it would seem a 

 most difficult thing to discover its error, and a most 

 puzzling piece of knowledge to utilize when found." l 



1 " Pioneers of Science,." Professor 0. Lodge, F.R.S., 1893, p. 384. 



