Johnson-Bovey tables

The first point to recall is that both sets of tables are based on methods vhich, from a theoretician s point of view, are extremely crude and that, c< seq.uently, nsithgae can be expected to give realistic predictions in all regions of space The Wau d —Fessenden— Johnson-Bovey treatment regards the v-electrons eus being in tvo classical current- loops, above and belov the plane of a benzenoid... 

Figure 1 Coniparison between predictions of the Johnson-Bovey (1958) and Haigh-Hallion (1972) tables, for points in the plane of a bensene ring.

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