312 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1925 



markable character; and could we but understand and imitate arti- 

 ficially the processes of building up and breaking down which are 

 so quietly and so regularly occurring in a single cell of yeast, we 

 should be not only within measurable distance of a new organic 

 chemistry, but also we should be appreciably nearer to an under- 

 standing of that greatest of all problems, the nature of life. 



