The revision of the criminal law which has been so wisely conceived, and thus far so ably executed, has yet left one very important part of the subject untouched; although it is one very nearly affecting the administration of justice and the safety of society. It is to be feared that the unwillingness to meddle with a question avowedly beset with difficulties, as this is, may be, to some extent at least, owing to the fact that such widely different opinions have been expressed by those whose judgment must necessarily guide our lawgivers on the subject of criminal lunacy, as it is called. But the difficulty of the subject, and the differences of opinion among those best informed, offer no sufficient reason why the attempt to apply a remedy should be indefinitely postponed, at the cost of so much accumulated cruelty and injustice.