Is there any difference between the particular form of evil which would be produced by over-population, and other forms of evil which we know to exist in the world? It is, says Mr Sadler, not a light or transient evil, but a great and permanent evil. What then? The question of the origin of evil is a question of ay or no,--not a question of more or less. If any explanation can be found by which the slightest inconvenience ever sustained by any sentient being can be reconciled with the divine attribute of benevolence, that explanation will equally apply to the most dreadful and extensive calamities that can ever afflict the human race. The difficulty arises from an apparent contradiction in terms; and that difficulty is as complete in the case of a headache which lasts for an hour as in the case of a pestilence which unpeoples an empire,--in the case of the gust which makes us shiver for a moment as in the case of the hurricane in which an Armada is cast away. It is, according to Mr Sadler, an instance of presumption unparalleled in literature, heathen or Christian, to trace an evil to "the laws of nature, which are those of God," as its source. Is not hydrophobia an evil? And is it not a law of nature that hydrophobia should be communicated by the bite of a mad dog? Is not malaria an evil? And is it not a law of nature that in particular situations the human frame should be liable to malaria? We know that there is evil in the world. If it is not to be traced to the laws of nature, how did it come into the world? Is it supernatural? And, if we suppose it to be supernatural, is not the difficulty of reconciling it with the divine attributes as great as if we suppose it to be natural? Or, rather, what do the words natural and supernatural mean when applied to the operations of the Supreme Mind? Mr Sadler has attempted, in another part of his work, to meet these obvious arguments, by a distinction without a difference.