摘要: 1 The Hammett Equation-the Present Position.- 2 Separation of Polar, Steric, and Resonance Effects by the Use Linear Free Energy Relationships.- 3 Relationships Optical Spectroscopy.- 4 Correlations Substituent in 1H, 19F, 13C Nuclear Magnetic 5 Influence Solvent on Organic Reactivity.- 6 Reagent 7 Inorganic Chemistry.- 8 Enzymology.- 9 Interpretation Drug Action through 10 Mass Spectrometry Data Author Index.