Photoelectron-neutraI-neutraf coincidence spectra have been measured for the dissociative photodetachment of O-4(-), (O-4+hv-->O-2+O-2+e(-)) at 523 and 349 nm, The neutral photofragment translational energy spectrum, the photoelectron spectrum, and the correlations of the translational energy and photoelectron energy are presented here, The correlation spectra reveal phenomena that are not discernable in either one-dimensional measurement. Features are observed which indicate that non-Franck-Condon processes play a role in the dissociative photodetachment of O-4(-) at 349 nm.