In addition, Rosovsky announced that the Social Studies department will move its faculty and tutorial offices into the basement of Hilles Library.
The opposition to the plan that began when Dean Fox first drew up the plan has continued despite Rosovsky's approval.
Last month, opponents of the plan distributed leaflets calling for students to send letters to the College Fund declaring their reluctance and in some cases, refusal to contribute to Harvard upon graduation should, the Fox plan be implemented.
Several Quad students contacted yesterday who sent the letters said they would keep to their promises.
One South House resident who wished to remain anonymous said yesterday he and his family would not donate money until further improvements were made in the Quad and four-year housing was reimplemented.
The plan will be thoroughly reviewed in five years and alternatives will be reconsidered, Rosovsky said.