64 BACTERIOLOGICAL AND ENZYME CHEMISTRY 



discuss constitutional formulse at any length would involve 

 writing a text-book on organic chemistry, but emphasis has 

 been laid on the importance of a knowledge of the reactions of 

 certain fairly simple groups of atoms which occur again and 

 again in the numberless substances which form the subject 

 matter of this science. Finally, one or two very simple 

 instances of the determination of constitutional formulae 

 have been given. It is thus hoped that even those readers 

 whose knowledge of organic chemistry is limited, may yet be 

 able easily to follow the subsequent chapters of this book. 



