PROCEEDINGS OF THE OHIO ACADEMY OF SCIENCE. 387 



make war impossible because of the mighty destructive agencies 

 that may be brought into action. 



In conclusion if you ask me, "What is the most important 

 of the problems that present themselves for solution in the 

 domain of chemistry," I answer without hesitation, it is the prob- 

 lem of the chemistry of the living organism. What are the 

 processes by which the organisms are built up ; what are the 

 energy changes involved in these processes; what is the relation 

 of these changes to the life of the organism. — such questions as 

 these have to deal with that highest of all problems, the problem 

 of life itself. Today I am able to give you only glimpses into 

 this wonderful region. At your half centennial celebration the 

 speaker who narrates to you the advances in chemistry and the 

 allied sciences will have a more wonderful story to tell. 



