TABLE OF CONTENTS. 
Page. 
Introduction 7 
Chapter I : 
Theories of oxidation 9 
Chapter II: 
The oxidizing ferments 31 
The guaiacum reaction 33 
Oxygen-exciters and oxygen-carriers 40 
Oxidizing ferments (general) 48 
Oxidases 52 
Classification of the oxidases 57 
Oxidase and peroxidase reagents 60 
Laccase 61 
Anti-laccase 66 
Tyrosinase 67 
Anti-tyrosinase 87 
Oenoxidase 88 
Maloxidase 89 
Spermase 90 
Oxidin (cerealin) 90 
Schinoxidase 90 
Olease 91 
Purpurase 91 
Luc if erase 92 
Aldehydase 93 
Indophenol oxidase i the Rohmann-Spitzer reaction i 100 
Purin oxidases (Xanthin-oxidase) 103 
Chapter III: 
Peroxidases and catalases 108 
Sources of peroxidase, and methods of preparation 110 
Nature and mode of action of oxidases, peroxidases and catalases, and 
the chemical relationships existing among these substances 112 
The oxygen-catalysts of the blood 120 
Iron, copper, and manganese in their relation to the oxidizing fer- 
ments; artificial peroxidases, etc 122 
Peroxidase accelerators and auxiliary oxygen carriers 131 
Catalases 132 
References to the literature 141-161 
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