I4 QUESTIONS TO BE CONSIDERED. 



I shall draw attention to the phenomena which occur in 

 the highest and most complex as well as in the simplest 

 form of living matter, which never have been, and which 

 certainly cannot at this time be explained upon any known 

 physical or chemical laws, but I shall proceed, in the first 

 place, to examine in detail some of the statements which 

 have been made in favour of the physical doctrine of life. 



