The National Review

tion of these to the occupied population is about one in fifty-eight. It is supposed, however, by the best authorities that this number is far too large, if the word "unoccupied " means not engaged in some useful or necessary occupation. But even taking the numbers as they stand, the addition of the idle classes to working classes would only relieve the latter to the extent of about one minute in the hour.

XIII.-Concluding Remarks.

These diagrams are offered to the readers of the National Review, firstly, as specimens of, the class of facts which it is of the most urgent importance to disseminate, and secondly, of a simple and efficacious means of disseminating them. Such diagrams, with a page of explanations attached to each, might be easily published in the form of leaflets; and in case the facts contained in them should be doubted, with each series might be published one pamphlet, giving the authorities and the principles on which each calculation has been made. It must be borne in mind that the smaller the diagram is, the more impossible is it to give minute details; the more rough and general becomes the character of the facts represented. But all that is required for the foundation of such knowledge as is in question is an accuracy that is broad and substantial. Too many details at first bewilder the mind instead of instructing it. At the same time, I may mention that a few years ago I had some diagrams, similar to some of the foregoing, executed on a very large scale; they were, I think, about 12 feet in length; and these I used on several occasions in Scotland, and once in Manchester, as illustrations to political speeches. They could be easily seen by everyone, even in very large buildings; and their size allowed many details to be introduced into them, which, if introduced at all into diagrams on a small scale, would be microscopic and invisible.

W. H. MALLOCK.

Fig. 3.

Fig. 2.