CONTENTS. 



PAGE 



INTRODUCTION, BY PROFESSOR TYNDALL .... XI 



RECOLLECTIONS OP CHILDHOOD AND YOUTH FIRST DISCOVERIES 1 



FERMENTATION 40 



ACETIC FERMENTATION THE MANUFACTURE OF VINEGAR . 66 



THE QUESTION OF SPONTANEOUS GENERATION . . . . 89 



STUDIES ON WINE . .' ~~~7 112 



THE SILKWORM-DISEASE 127 



DECISIVE EXPERIMENTS .... . . .164 



STUDIES ON BEER 168 



VIRULENT DISEASES SPLENIC FEVER, SEPTICAEMIA . . 176 



FOWL CHOLERA 212 



ATTENUATED VIRUS, OK VACCINATION THE FOWL CHOLERA 



VACCINE 220 



THE VACCINE OF SPLENIC FEVER 231 



THE RETURN TO VIRULENCE 246 



ETIOLOGY OF SPLENIC FEVER 250 



METHOD OF DISCUSSION AND CONTRADICTIONS . . .262 



THE LABORATORY OF THE ECOLE NORMALE VARIOUS STUDIES 



HYDROPHOBIA . . . . 271 



