CONTENTS.

PAGE
Introduction [1]
CHAPTER I.
IS IT PROBABLE THAT EPIDEMIC, ENDEMIC, AND INFECTIOUS DISEASES,
DEPEND UPON VITAL GERMS FOR THEIR MANIFESTATIONS?
[11]
CHAPTER II.
THE NUMBER AND VALUE OF FACTS TO SUPPORTTHE PROPOSITION.
Section I.—On Reproduction [22]
Section II.—Historical Notice of Epidemic Diseases [34]
Section III.—The Dispersion of Plants and Diseases [64]
Section IV.—The Relation between Epidemic and EndemicDiseases [96]
CHAPTER III.
THE REASONABLENESS OF THE APPLICATION OFTHE FACTS TO THE INFERENCE.
Section I.—The Chemical Theory of Epidemics untenable [108]
Section II.—The Animalcular Theory of Epidemics untenable [128]
Section III.—Sketch of the Physiology and Pathology ofPlants and Animals [138]
CHAPTER IV.
RESULTS IN PROOF OF THE TENABLENESS OF THEPROPOSITION.
Section I.—Observations on some of the Laws of EpidemicDiseases [155]
Section II.—What is the nature of those Poisons which mostresemble the Morbid Poisons in their effects on the body? [166]
Section III.—What results do we obtain from the effects ofremedial agents, in proof of the hypothesis? [176]
Conclusion [189]