consequences of the condemned behaviour were understood,--properly expounded, for example, in little manuals for the use of school children,--obedience to the new regulation would spontaneously follow. What they did not see, or did not fully appreciate, was the enormous series of other things--religious, moral, and intellectual--which are necessarily implied in altering the relation of the strongest human passion to the general constitution, and the impossibility of bringing home such an alteration, either by an act of legislation or by pointing out the bearing of a particular set of prudential considerations. Political Economy might be a very good thing; but its expositors were certainly too apt to think that it could by itself at once become a new gospel for mankind. Should we then infer from such criticisms that the doctrine of Malthus was false, or was of no importance? Nothing would be further from my opinion. I hold, on the contrary, that it was of the highest importance, because it drew attention to a fact, the recognition of which was essential to all sound reasoning on social questions. The fact is, that population is not to be treated as a fixed quantity, but as capable of rapid expansion; and that this elasticity may at any moment require consideration, and does in fact give the explanation of many important phenomena. The main fact which gave importance to Malthus's writings was the rapid and enormous increase of pauperism during the first quarter of this century. The charitable and sentimental writers of the day were alarmed, but proposed to meet the evil by a reckless increase of charity, either of the official or the private variety. Pitt, we know, declared (though he qualified the statement) that to be the father of a large family should be a source of honour, not of obloquy; and the measures adopted under the influence of such notions did in fact tend to diminish all sense of responsibility, encouraged people to rely upon the parish for the support of their children, and brought about a state of things which alarmed all intelligent observers. The greatest check to the evil was given by the new Poor-law, adopted under the influence of the principles advocated by Malthus and his friends. His achievement, then, was not that he laid down any absolutely correct scientific truth, or even said anything which had not been more or less said by many judicious people before his time; but that he encouraged the application of a more systematic method of reasoning upon the great problem of the time. Instead of simply giving way to the first kindly impulse, abolishing a hardship here and distributing alms elsewhere, he substantially argued that society formed a complex organism, whose diseases should be considered physiologically, their causes explained, and the appropriate remedies considered in all their bearings. We must not ask simply whether we were giving a loaf to this or that starving man, or indulge in _à priori_ reasoning as to the