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The resonant Raman effect of pyrazine was studied quantitatively with tunable UV lasers at liquid helium temperature. Solid solutions of pyrazine in benzene with various concentrations (3% to 0.1%) were used. Using the 990 $cm-1$ benzene vibration as reference, the excitation profiles of Raman intensities for $\nu 1,\nu 9,\nu 6a,$ and $\nu 10a$ were determined. It was found that both $\nu 6a$ and $\nu 10a$ are enhanced by a factor of $106$. The functional dependence is quite different for different vibrations, e.g., $\nu 6a$ shows a $(\Delta E)-2$ dependence $(\Delta E $ is the difference between the excitation energy and the resonance), whereas, $\nu 10a$ shows a $(\Delta E)-4$ dependence off resonance and a $(\Delta E)-1$ dependence near resonance. Existing theories by Albrecht, Peticolas, etc., would predict $(\Delta E)-4$ off resonance and $(\Delta E)-2$ near resonance for $\nu 10a$ and $(\Delta E)-4$ for $\nu 6a$ throughout.