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For the reaction 610-MeV 86 Kr+ 209 Bi, angular correlations of fragments from fissioning heavy reaction products have been measured with respect to the recoil direction, both in and out of the reaction plane. The deduced angular momentum of the recoil particle is large, (50-70)/f, and is consistent with that of the sticking limit and greater than that of the rolling limit. This result demonstrates the importance of the tangential component of the frictional force.In reactions between high-energy, very heavy ions, the deeply inelastic scattering process is characterized by strong damping of the initial kinetic energy, angular distributions peaked near the grazing angle, and average charge and mass characteristic of the target and projectile. In the case of 610-MeV 86 Kr + 209 Bi, the reaction cross section is dominated by this process 1 ; the combined Coulomb and nuclear potentials give rise to a focusing of most partial waves into an angle near the grazing angle. 2

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