The objects of this paper are (1) to set out for members of the profession some account of the further investigations that have been made into the statistics that formed the basis of the A 1924-29 Table, (2) to correct certain errors that have been discovered, (3) to explain the possible weaknesses in the statistics, (4) to discuss the variations in mortality shown by individual offices, and (5) to give some idea of the range in mortality above and below the combined result of all the offices. There is necessarily some overlapping in the treatment of these objects and it is difficult to draw hard and fast lines between them, but we hope that by bearing these general objects in mind the reader will not be disturbed by what is, we fear, a somewhat discursive paper.