CONTENTS. 
Page. 
Introduction 7 
Properties and uses 8 
Discovery and methods of preservation 8 
Tests 10 
Work by previous investigators 12 
Original work 25 
Antiseptic power of formalin 25 
Antiseptic power against putrefactive organisms 25 
Antiseptic power against pure cultures 26 
Summary of antiseptic power against pure cultures 33 
Germicidal power of formalin 35 
Germicidal power against pure cultures 35 
Time of maximum germicidal effect 37 
Action on feces 38 
Disinfection of sputum 40 
Action on tetanus and diphtheria toxines 40 
Summary and conclusions 43 
Bibliography 45 
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