n in the Meaning
of Terms 115

VI. Terminology and Nomenclature 117

VII. Classification, as Subsidiary to Induction 121

VIII. Classification by Series 124

BOOK V.

FALLACIES.

I. Fallacies in general 127

II. Classification of Fallacies 128

III. Fallacies of Simple Inspection; or, a priori Fallacies 130

IV. Fallacies of Observation 134

V. Fallacies of Generalisation 137

VI. Fallacies of Ratiocination 141

VII. Fallacies of Confusion 143

BOOK VI.

ON THE LOGIC OF THE MORAL SCIENCES.

I. Introductory Remarks 148

II. Liberty and Necessity 148

III. There is, or may be, a Science of Human Nature 150

IV. The Laws of Mind 151

V. Ethology, or the Science of the Formation of Character 153

VI. General Considerations on the Social Science 155

VII. The Chemical, or Experimental, Method in the Social
Science 156

VIII. The Geometrical, or Abstract Method 157

IX. The Physical, or Concrete Deductive Method 158

X. The Inverse Deductive, or Historical Method 161

XI. The Logic of Practice, or Art; including Morality
and Policy 165

ANALYSIS OF MILL'S LOGIC.

INTRODUCTION.

No adequate definition is possible till the properties of the thing to
be defined are known. Previously we can define only the scope of the
inquiry. Now, Logic has been considered as both the science of
reasoning, i.e. the analysis of the mental process when we reason, and
the art of reasoning, i.e. the rules for the process. The term
_reasoning_, however, is not wide enough. _Reasoning_ means either
syllogising, or (and this is its truer sense) the drawing inferences
from assertions already admitted. But the Aristotelian or Scholastic
logicians included in Logic terms and propositions, and the Port