Brown and Pembroke will admit black students under an escalating quota system for the next five years, Ray L. Heffner, President of Brown University, announced last night.

Heffner acted after almost all of Brown and Pembroke's 85 black students walked out of the university yesterday to protest Heffner's previous rejection of an 11 per cent quota. He met throughout the day with university officials, and released a detailed plan last night.

Pembroke will admit 11.3 per cent blacks and Brown 5.6 per cent to the class of '73. By the class of '77, 11.1 per cent of Brown's entering class and 12.5 per cent of Pembroke's will be black The black strikers, who spent yesterday in the Congdon Street Baptist Church, had no immediate comment.

The black students had made eleven demands, includig a black admissions officer, special consideration for blacks because of their inadequate academic background, and additional scholarship funds. Heffner agreed to all the demands except a quota.

The blacks then left the university, some carrying suitcases, and saying they would not return until Heffner agreed to a quota or admitted that Brown is a racist institution.

A Brown Daily Herald editor said last night that the blacks have not made clear whether the 11 per cent demand applied to Brown in addition to Pembroke, or whether a delay in its implementation would be acceptable.

A meeting of 175 white students decided late last night to walk out of classes until the blacks return unless the instructor agrees to a discussion of the crisis