A body of economists could agree to plot out or imagine a succession of 'curves' representing the advantage to be obtained from each additional unit of size in dignity, adequacy of representation, supply of members for committee work, healthiness, etc., and the disadvantage of each additional unit of size as affecting convenience of debate, etc. The curves of dignity and adequacy might be the result of direct estimation. The curve of marginal convenience in audibility would be founded upon actual 'polygons of variation' recording measurements of the distance at which a sufficient number of individuals of the classes and ages expected could hear and make themselves heard in a room of that shape. The economists might further, after discussion, agree on the relative importance of each element to the final decision, and might give effect to their agreement by the familiar statistical device of 'weighting.' The answer would perhaps provide fourteen square feet on the floor in a room twenty-six feet high for each of three hundred and seventeen members. There would, when the answer was settled, be a 'marginal' man in point of hearing (representing, perhaps, an average healthy man of seventy-four), who would be unable or just able to hear the 'marginal' man in point of clearness of speech--who might represent (on a polygon specially drawn up by the Oxford Professor of Biology) the least audible but two of the tutors at Balliol. The marginal point on the curve of the decreasing utility of successive increments of members from the point of view of committee work might show, perhaps, that such work must either be reduced to a point far below that which is usual in national parliaments, or must be done very largely by persons not members of the assembly itself. The aesthetic curve of dignity might be cut at the point where the President of the Society of British Architects could just be induced not to write to the _Times_.