A state Supreme Court judge delayed until next week his decision on whether to issue a permanent restraining order against Columbia University students who are blocking access to a campus building in protest of South Africa's policy of racial segregation.

A temporary restraining order has been in effect since Sunday. At noon yesterday 14 protesters were notified to appear in court April 16 to explain why they should not be found in contempt of court for continuing their action. The students are demanding that Columbia trustees sell about $34 million in stocks and bonds of companies that do business in South Africa. add a Salmonella Cases May Rise in Midwest CHICAGO -- State health officials said they expect the number of salmonella cases in the Midwest to increase over the next several weeks through secondary contagion, with 2,214 confirmed cases in Illinois, Indiana, Iowa, Michigan and Wisconsin.

Low-fat milk produced by Jewel Cos. Inc. is suspected in the outbreak and has been removed from the company's supermarkets.

Patricia Larsen of the Illinois Department of Public Health said the bacteria are resistant to antibiotics and can remain in the human system up to five weeks. She said the risk of contagion can be reduced through strict hygiene.