Neutron time-of-flight spectra and α-particle spectra were obtained in coincidence with γ rays characteristic of specific evaporation residues in the reactions 174.8 MeV Ne 20+ Nd 150 and 152.0 MeV C 12+ Gd 158, producing Yb 170 at 134.2 and 132.0 MeV of excitation. The average multiplicity of γ rays associated with such coincident events were also determined. The neutron spectra from the Ne 20 reactions are characteristic of equilibrium evaporation processes. They show a temperature t∼ 2 MeV, in agreement with a prediction from level-density parameters based on data at far lower excitation energy. The neutron spectra from the C 12 reactions show a low-temperature equilibrium component (average t∼ 1.8 MeV) and a high-temperature (t∼ 6 MeV) pre-equilibrium component. The latter observation may be interpreted as evidence for the transient existence of a hot spot involving no more than 25 nucleons. The estimated number of pre-equilibrium neutrons emitted varies from 1.8 to 0.6 for the 8 n to 1 0 n products and from 1.2 to 0.25 for the α 6 n to α 9 n products. The fraction of Er 1 6 6− x products formed by 2 p (x+ 2) n rather than α xn emission decreases with increasing x for both the Ne 20 and C 12 reactions, and is roughly twice as large for C 12. The high-energy portions of the α-particle spectra from (C 12, α xn) for small x exhibit a strong dependence on exit channel and on angle of emission, indicating clearly that these α particles are emitted from a nonequilibrated system. The angular correlations of the higher-energy α particles from (C 12, α 7 n) to (C 12, α 1 0 n) all have the same shape, suggesting that in these channels the α emission occurs first. The pre-equilibrium emission accounts for (16±7)% and (28±6)% of the total (C 12, xn) and (C 12, α xn) cross sections, respectively. For these reactions the average multiplicities< M> xn and< M> α xn from coincidences with neutrons and α particles of all energies saturate at∼ 20.5 for x≤ 9 and≤ 8, respectively, showing that the pre-equilibrium emission limits the angular momentum that can be imparted to the product nuclei prior to γ decay. For (Ne 20, α xn) evidence for such a limiting effect was found for x≤ 7 and the α-particle spectra show some hardening for x≤ 7, but there is no evidence for pre-equilibirum emission in the (Ne 20, xn) reactions. The multiplicity from (C 12, α 8 n) associated with E α≥ 24 MeV was found to be lower at forward α-emission angles, apparently another manifestation of pre-equilibrium emission.