CONTENTS 



CHAPTER I 



TAGE 



Introduction ...... i 



Necessity of quantitative methods. Material treated. 

 Use of the physico-chemical methods. Graphical 

 methods. Enzymes. Toxins. Antibodies. Specificity. 



CHAPTER II 



Velocity of Reactions . . . . 19 



Historical remarks regarding biochemistry. Reactions 

 in vivo and in vitro. Spontaneous decompositions. 

 Coagulation. Disturbing influences. Inversion of cane- 

 sugar by invertase. Influence of acids and bases. In- 

 fluence of concentration. The rule of Schiitz and its 

 generalization. The ^/-law. 



CHAPTER III 



The Influence of Temperature on the Velocity 



of Reactions. Reactions of Cells . . 49 



General law, approximate expression of it. Spon- 

 taneous decompositions. Destruction of cells at high 

 temperature. Table of /x-values. Optimum tempera- 

 tures. Fermentation by yeast cells. Haemolysis of red 

 blood-corpuscles. Agglutination of bacteria. Killing of 

 micro-organisms. Different sensibilities. Theoretical 



explanation. 



IX 



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