position of this would immediately direct us to the value of $d$; comparison of the cross-sections would now yield a measurement of the value of $M_S$. The identification of the model parameters should be unambiguous since the curves for different values of $d$ do not intersect except at the origin. In any case, the area in the vicinity of the origin is limited by the search limits indicated in Table 1 since it corresponds to very high values of $M_S$. The shaded region corresponds to $M_S = \sqrt{s}$ beyond which the theoretical calculations are unreliable. It should, of course be remembered that further information on the fundamental parameters of theory can be extracted from various kinematic distributions which are sensitive to these parameters.

Summary and Conclusions
=======================

In the paper we have considered the process $e^+ e^- \to e^+ e^- G_n$, which is essentially Bhabha scattering with radiated gravitons in the ADD model. After identifying suitable event selection criteria, we find that this process can act as an effective probe of large extra dimensions at a high-energy $e^{+} e^{-}$ collider, especially with a center-of-mass energy of order 1 TeV and with polarized beams. The string scale $M_S$ that can be 