Security Alert There have been several robberies and assaults on or near the Homewood campus in the past several weeks. At 4 a.m. on April 12 and 6 p.m. on April 13, the Royal Farm Store on East 33rd Street was robbed, the first afternoon by one man and the second afternoon by the first man joined by an accomplice. In both cases, the assailant threatened the clerk as if he were armed, but no weapons were displayed in either incident. At 11:40 p.m. on April 19, an assailant robbed a Hopkins student at gunpoint on the southwest corner of 30th and N. Calvert streets, taking the student's wallet. The student was not injured. At 9:20 p.m. on April 23, a student was walking east on University Parkway. As she was about to enter campus on Goodnow Road, she was approached from behind by a man she described as tall, soft-spoken and wearing wintry clothes. He grabbed her wrist and demanded money. After taking her money, he exposed himself and then ran off. At 3:35 a.m. on April 26, a student walking behind the Hopkins statue at 33rd and Charles streets was grabbed from behind by her shoulders by a man she described as about 6 foot 1 inch tall with shoulder-length blond, straggly hair. She quickly broke away and ran to the Shriver Hall Security Office. The student was not injured. Additional overtime campus police patrols are in place on the north and east side of the campus from 8 p.m. to 2 to 3 a.m. The Northern Police District has been asked for additional attention to University Parkway and Charles and St. Paul streets.