3:24
Entered private office without waiting to be announced . Emerged at 3:12 , walking slowly and in deep thought . At B and Cedar streets stopped suddenly , snapped his fingers and started walking rapidly , in the manner of one who has arrived at a decision . At 3:24 entered the telephone building and placed a long-distance call . Operative standing at counter close by heard him place call with the girl on duty . He asked for the Cardigan Redwood Lumber Company in San Francisco . Concluded his conversation at 3:32 and proceeded to the city hall , entering the Mayor 's office at 3:43 and emerging at 4:10 .