by G. R. de Beer. by J. H. de Boer. by H. E. de Wardener. by C. W. de Kiewiet. by E. R. de Ong. by M. H. de Kock. by F. M. de Rivas. by Rev. C. W. Mateer. Sara A. van de Geer. by Ing. J. P. de Haan.