§ 1. The problem of definition in political economy . 153
§ 2. Conditions to be satisfied in framing economic

definitions 159

§ 3. Relativity of economic definitions . . . .166



XU CONTENTS.
CHAPTER VI.
On the Method op Specific Experience in
Political Economy.
PAGE

§ 1. Preliminary functions of observation in economic

enquiries 172

§ 2. Limited scope for experiment in political economy . 178

§ 3. The employment of the method of difference in-
dependently of deliberate experiment . . 188

§ 4. The method of inductive generalization from a

multiplication of instances. . . . 202

§ 5. Limitations of the empirical method . . 209

CHAPTER VII.
On the Deductive Method in Political Economy.
§ 1. Nature of the deductive method .... 216
§ 2. The application of the term "hypothetical" to

economic science 217

§ 3. Functions of observation in the employment of the

deductive method 227

§ 4. Ricardo's use of the deductive method . . . 236

§ 5. The premisses of deductive political economy . 240

§ 6. Special modifications of the deductive method . 244

CHAPTER VIII.
On Symbolical and Diagrammatic Methods in
Political Economy.
§ 1. Mathematical character of political economy . 252

§ 2. The employment of arithmetical examples . . 254



CONTENTS. XIU



3. Exact numerical premisses not essential to the em-

ployment of mathematical methods . . . 256

4. Advantages resulting from the use of symboUcal and

diagrammatic methods in political economy . 260



CHAPTER IX.
On Political Economy and Economic History.
