TABLE OF CONTENTS

LECTURE I
PACK
Introduction—The Phlogiston Theory in its First and in its Later
Acceptations—Chemical Knowledge of the Phlogistians—Fall
of the System . . . . . .1
LECTURE II
Revolution of the Views regarding Combustion—Priestley—Scheele
—Lavoisier—Indestructibility of Matter . . 15
LECTURE III
Chemical Nomenclature—Tables of Affinity— Berthollet's Views-
Controversy regarding Constant Composition . . -Si
LECTURE IV
Richter's Investigations—Dalton's Atomic Theory—Gay-Lussac's
Law of Volumes — Avogadro's Hypothesis — Wollaston's
Equivalents ....... 47
LECTURE V
Davy's Electro-Chemical Theory—Discovery of the Alkali Metals—
Discussion regarding their Constitution—Does Hydrochloric
Acid contain Oxygen ?—Hydrogen Theory of Acids . . 67
LECTURE VI
Berzelius and his Chemical System,—Dulong and Petit's Law—
Isomorphism—Prout's Hypothesis—Dumas' Vapour Density
Determinations—Gmelin and his School . . £5
xiii