A crowd of 150 people filed the center side of Memorial last night to hear Daniel Ellsberg '52, an outspoken opponent of the nuclear arms race.

Best known for his release of the Pentagon Papers, Ellsberg now lectures against government defense policies based on threats of massive nuclear attacks.

In his hour-end-a-half speech, Ellsberg traced current nuclear arms policy to World War II rationales for bombing strategies than soldiers.

Last night was the first time the controversial Ellsberg has spoken at the request of a faculty group since he released the Pentagon Papers, John E. Mack, a professor of psychiatry at the Harvard Medical School who introduced Ellsberg, said.

Before Ellsberg's introduction, a member of the Spartacus Youth League took the podium to complain that Harvard University Police had told them to stop handing out leaflets calling for an end to Marine recruiting on campus.