This is actually a series of lectures given by B.B. Warfield, a key figure in conservative American Presbyterianism. It is a highly informative and thorough study and examination of the phenomenon of miracles from the time of Christ to his immediate present age whereby he refutes that miracles continues to occur today but has effectively ceased with the closure of the Apostolic age.
He begins, well, at the beginning, with the New Testament and the apostolic age. He sets out by first refuting a popular theory at that time that miracles continued after the death of the apostles until the 4th century when it ceased because the Christian faith was not in need of any miracles, the wheels of the missionary work apparently taken over by imperial endorsement. Warfield refutes this theory by noting that factually this is most certainly false as an examination of the apostolic fathers revealed that miracles far from increasing actually completely ceased with the apostles. None of the apostolic fathers claimed to have performed any miracles and their record or witness of miracles were extremely scarce, most of them gesturing towards the miracles performed during the apostle's time and none contemporary to themselves.
The reports and witnesses to miracles only started to balloon during the time of St Augustine onwards and positively exploded during the medieval age. But even then Warfield notes that Augustine's opinion on miracles went through a slow development, from a hesitant report in the early part of his theological career to a much more certain endorsement later on. However, Warfield notes that there are some very interesting and disturbing parallels between the miracles reported by the patristic fathers like St Augustine and some of the pagan miracle tales which has already existed before, which doubtlessly points to a convenient co-opting of pagan miracle stories by Christians as the Christian faith became much more widespread which was somewhat uncritically recorded down by St Augustine. Warfield also notes that this age of the massive proliferation of miracles has its origin not in the Christian faith but simply in democratisation of the faith fusing into the pagan world because of the fact that the heretics, like the donatist, soon claimed to be able to perform miracles too in aid of their theological cause, which miracles St Augustine refuses to accept as authentic. Thus, it is not the miracles which is the evidence of orthodoxy but orthodoxy which is the evidence of the miracles.
But the theological reason Warfield gives for the cessation of miracles was that miracles was a sign to confirm the Apostle's authority and their revelation. Thus, only the apostles could grant the power to perform miracles upon their disciples as a sign and confirmation of the divine revelation to which they have been entrusted and to their apostleship. However, once the apostles died, divine revelation ceased with them and so did the need to perform signs and wonders to confirm their apostolic office and divine revelation. This is why after the apostolic age, performance of miracles virtually disappeared and reports of them dramatically dropped, that is, until the later patristic age.
He moves on to discuss the many miracles in Catholicism, stigmata, Virgin's milk, relics, etc, paying careful attention to the details of their reports, the witnesses, etc, peppering his examination with dry humour and sly comments. One of his most interesting observations is the fact that in only very few cases does a saint actually claim to perform miracles or that reports and witnesses of miracles occurred while a saint was still living. Most "saintly" miracles are overwhelming centred around the *dead* body of the saint, not forgetting the relic cottage industry which selling off parts of the saint's body provided. (He also could not help poking fun at the outrage of the Jesuit and Catholic authorities at the "unauthorised" miracles surrounding the dead body of a Jansenist cleric, no doubt once more proving the dictum that it is the saint that makes a miracle and not the miracle a saint).
He also discusses the miraculous events surrounding a group of 19th century charismatics, the Irvingist, complete with prophesies, speaking in tongues, healings, etc, but which movement has more or less died when the prophesies have failed to come to pass. He provides quite a detailed account of the movement along with a thorough critique, containing lots of original quotes and extensive citation of eye-witness statements, etc.
Finally he moves on to faith-healings and mind-cures of the Christian scientists. It is in this section that he examines more closely what does a "miracle" mean whereby he distinguishes what occurs "immediately" without passage of time or use of means, and healings which occur upon prayer and use of God given means of medicine and doctors which he accepts.
It is quite an interesting read with an attention historical detail and first-person accounts and academic referencing to various experts, theological, historical and medical, which is truly impressive. But I guess the most important thing which this book has taught me is the true rational behind the cessation of miracles and sign and wonders, that miracles intricately and indissolubly tied to divine revelation and apostolic authority as their proper signs, and that naturally once the apostles died and divine revelation has ceased, so would the miracles which were the signs and confirmation of their message. Of course, I should have already have known this when Calvin in his introduction to his Institutes, refuted his Catholic's opponent's claim to orthodoxy by citing the many miracles which has occurred among them by pointing that his doctrine too was confirmed by many miracles and signs and wonders, the miracles and signs and wonders of the Apostles, which Calvin of course does claim to teach faithfully.
Overall, although the language is a bit ponderous and careful, but a readable work and not dull at all, especially when in the course of prodding through these difficult matters, one would be occasionally treated to some snide humour and wit.