‘The speculations of such ingenious authors enlarge our views, and amuse our fancies. They are useful for directing us to correct certain errors at particular times. Able legislators ought to consider them as models, and honest patriots ought never to lose sight of them, or any proper opportunity of transplanting the wisest of their maxims into their own governments, as far as they are adapted to their particular circumstances, and will give no occasion to dangerous convulsions. But this is all that can be expected. Though such ingenious romances should chance to be read and admired, jealous and selfish politicians need not be alarmed. Such statesmen need not fear that ever such airy systems shall be able to destroy their craft, or disappoint them of their intention to sacrifice the interests of mankind to their own avarice or ambition. There is too powerful a charm which works secretly in favor of such politicians, which will for ever defeat all attempts to establish a perfect government. There is no need of miracles for this purpose. The vices of mankind are sufficient. And we need not doubt but providence will make use of them, for preventing the establishment of governments which are by no means suitable to the present circumstances of the earth.’ See Various Prospects of mankind, nature and providence. Chap. iv. p. 113. Here then we have not only the same argument stated; but stated in the same connection and brought to bear on the very same subject to which it is applied by the author of the Essay. The principle and the consequences deduced from it are exactly the same. It often happens that one man is the first to make a particular discovery or observation, and that another draws from it an important inference of which the former was not at all aware. But this is not the case in the present instance. As far as general reasoning will go, it is impossible that any thing should be stated more clearly, more fully and explicitly than Wallace has here stated the argument against the progressive amelioration of human affairs, from the sole principle of population. ‘So will his anticipation prevent Mr. Malthus’s discovery;’ for it happens that Wallace’s book was published so long ago as the year 1761. As to the details of the Essay, I shall leave them to the _connoisseurs_, not pretending to know much about the matter; but as to the general principle or ground-work, I must contend that it was completely pre-occupied: Mr. Malthus has no more pretentions to originality on that score, than I or any one else would have, who after having read Mr. Malthus’s work undertook to retail the arguments contained in it and did it in words a little different from his own.—‘Oh! but,’ I hear some one exclaim, ‘the geometrical and arithmetical series! Has Wallace said any thing of them? did he find them out, or was not this discovery reserved entirely for the genius and penetration of Mr. Malthus?’ Why really I do