A study to test the hypothesis suggested by E.Durkheim that group integration increases during a crisis, with particular reference to the question of whether integration will increase if a solution to the crisis problem is unavailable. A crisis situation was established for 12 pop's of 3 people of the same sex & age, with 12 other groups acting as control. Participants were either personal acquaintances of the staff or residents of a housing development for married S's. Indices of integration were: helping behavior, the absence of self-oriented behavior, praise given to fellow S's, & lack of antagonism toward the experiment or others in the group. Results indicated that integration decreases in the absence of a likely solution during a crisis. This can be accounted for by the fact that there is no good reason for cooperating if a solution is unavailable. Moreover, mounting frustration would cause members to over-react to things not normally irritating, thus leading to aggression & the withdrawal of help. Results of previous studies indicate that integration increases during crisis if a likely co-operative solution is present & decreases if a likely competitive solution is present. I. Taviss.