CONTENTS.

PAGE
INTRODUCTION, BY PROFESSOR TYNDALL[xi]
RECOLLECTIONS OF CHILDHOOD AND YOUTH—FIRST DISCOVERIES[1]
FERMENTATION[40]
ACETIC FERMENTATION—THE MANUFACTURE OF VINEGAR[66]
THE QUESTION OF SPONTANEOUS GENERATION[89]
STUDIES ON WINE[112]
THE SILKWORM-DISEASE[127]
DECISIVE EXPERIMENTS[164]
STUDIES ON BEER[168]
VIRULENT DISEASES—SPLENIC FEVER, SEPTICÆMIA[176]
FOWL CHOLERA[212]
ATTENUATED VIRUS, OR 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 ÉCOLE NORMALE—VARIOUS STUDIES—HYDROPHOBIA[271]