It is not necessary here to discuss the credibility of miracles, as affected by the question whether there can be sufficiency of testimony to support the occurrence of a miracle,--a question which has engaged an amount of attention disproportionate to its intellectual worth. The suggestion of the question was nothing better than an example of misleading ingenuity, allowed to stand on the page on which it was indited in manifest violation of the laws of evidence and the essential conditions of human knowledge. The value of testimony does not depend on the nature of the thing to which it applies, but on the character of the witness, and the opportunity for observing and testing the facts described. There are, for example, a series of surgical operations being performed in Edinburgh for removal of tumors (Ovariotomy), and being repeated at intervals of two or three weeks, which have hitherto been declared by the profession to be impossible without sacrifice of life; and yet they are successfully accomplished, leaving only an exceedingly small percentage of death. The whole combined testimony of preceding ages has been against the possibility of such operations; but this is a consideration of no value whatever in view of the testimony of the surgeons who take part in the hazardous and responsible, but most beneficent work, and of those professional men who have come from France, and Russia, and other lands, to witness the operation, and of citizens well acquainted with patients who have been delivered from a burdened life, overshadowed with prospect of early death. The laws of evidence are too well understood to call for abstract reasoning as to the credibility of the witnesses who are at present giving their testimony to the scientific world, of the successful repetition of an operation hitherto believed to be impossible. The bearing of such an illustration on the discussions raised concerning the credibility of the evidence of our Lord's disciples to the miracles He performed is obvious. Nor is there need for occupying time in trampling out the beaten straw by lingering over the argument that no evidence can be sufficient to establish a miracle, _because_ a miracle is contrary to common experience; for, it is obvious that a miracle must be contrary to common experience, since that which is matter of common experience can not be a miracle, but must be an event determined by some law of nature. The uniformity of the laws of nature is even a necessary condition for the evidential value of miracles. We pass to the real merits of the question in discussing the possibility of the miracles of Christ without violation of any of the laws of nature as ascertained by the most recent advances of science.