This 1973 book was written to provide senior undergraduates and first-year graduate students with a guide to the Hammett equation.

Preface; 1. The Hammett ¿ ¿ relationship; 2. Elucidation of reaction mechanisms; 3. The separation of inductive, resonance and steric effects: application of the Hammett equation to aliphatic systems; 4. Application of the Hammett equation to data other than side chain reactivities of substituted benzenes; 5. Thermodynamic aspects of the Hammett equation; Problem discussion; References; Index.