Cambridge detectives hinted yesterday they may be close to an arrest that will clear up a recent series of robberies from University rooms.

University Police Chief Matthew J. Toohey, working on the cased with Cambridge Police Sergeant James F. Murphy, said last night that last week's $200 Thayer hall robbery was apparently "one in a chain of robberies" in the last three months.

Since January 18, Dunster House rooms have been entered ten times. Losses from these burglaries have been estimated at over $200. Each of these thefts and the one in Thayer, March 4, followed the same pattern Toohey said. The thief always struck in the early morning, and only in rooms where the doors had been left open.

New Witness

Today also revealed last night that another witness had come forward in the Thayer robbery, Hubert E. Hocutt '57, of Stoughton Hall. Hocutt told the detectives yesterday he saw a dark-haired, unshaven man "young enough to pass for a student" leave Thayer North about five minutes before the robbery in Thayer South.