All measurements in the literature on the Cape photometric system as of early 1975 have been compiled. The catalog includes measurements from 38 publications as well as 469 unpublished measurements forwarded by Dr. A. W. J. Cousins. Introduction: The method and computer program described by Hauck (1973) and used by Lindemann and Hauck (1973) was used for the ubvy{beta} system. The data of Cousins and Stoy (1963) were used as the standard but no systematic differences were found. As the standard error was sufficiently small, each publication was given the same weight. However, Johnson et al (1966) have signaled a slight divergence between their measurements in V and B-V and those given in the Cape system. Account was taken of this in the calculation. The probable error in each magnitude and color is less than 0.01mag.