Biochemical trapping of unidentified events

could be clearly explained, for instance, by ionizing radiations (Bounias, 1973), or thermic or water stresses (Bounias, 1983c).

It remains to examine the challenging hypothesis of a mystification by ill-intentioned people. One of the suggested explications was that somebody might have spread some cement on the area. In this case, the pH of the soil should have been modified; the results of pH determinations in the clods gave the results summarized in Table 13.

It is clear that no significant effect of either distance from epicenter or delay from D + 40 to D + 730 can be found (p => 0.84 and 0.52 resp. from variance analysis).

Moreover, nobody, except the author, knew in advance when and where or what was to be sampled and analyzed on the site. Thus, one can hardly imagine how anybody could have artificially elicited the observed results (except by invoking some ESP phenomenon!) so that the reliability of the results apparently remain significant.

It was not the aim of the author to identify the exact nature of the phenomenon observed on the 8th of January 1981 at Trans-en-Provence. But it can reasonably be concluded that something unusual did occur that might be consistent, for instance, with an electromagnetic source of stress. The most striking coincidence is that at the same time the French physicist J. P. Petit was plotting the equations that led, a few years later (Petit, 1986), to the evidence that flying objects could be propelled at very high speeds without turbulences nor shock waves using the magnetohydrodynarnic effects of Laplace force action!

It should now be most interesting to determine a catalog of the biochemical effects of electromagnetic waves, particularly the spectra of the continuous effects of varying em parameters, such as frequencies, intensities modulation and pulses. A number of experimental data found in the literature (Bounias, 1984) and in theoretical studies (Veve & Bounias, 1987) suggest that such a program would be of wide importance not only for UFO studies, but also, for instance, in medicine (Douss et al., 1985; Sornjen et al., 1982) and related areas.