Miss Anna Blackwell summarizes the contents of Kardec's chief books as follows:
"The Spirits' Book" demonstrates the existence and attributes of the Causal Power, and of the nature of the relation between that Power and the universe, putting us in the track of the Divine operation.
"The Mediums' Book" describes the various methods of communication between this world and the next.
"Heaven and Hell" vindicates the justice of the Divine government, by explaining the nature of Evil as the result of ignorance, and showing the process by which men shall become enlightened and purified.
"The Gospel as Explained by Spirits" is a comment on the moral precepts of Christ, with an examination of His life and a comparison of its incidents with present manifestations of spirit power.
"Genesis" shows the accordance of the Spiritist philosophy with the discoveries of modern science, and with the general tenor of the Mosaic record, as explained by spirits.
"These works," she says, "are regarded by the majority of Continental Spiritualists as constituting the basis of the religious philosophy of the future-a philosophy in harmony with the advance of scientific discovery in the various other realms of human knowledge; promulgated by the host of enlightened Spirits acting under the direction of Christ Himself."
On the whole, it seems to the author that the balance of evidence shows that reincarnation is a fact, but not necessarily a universal one. As to the ignorance of our spirit friends upon the point, it concerns their own future, and if we are not clear as to our future, it is possible that they have the same limitations. When the question is asked, "Where were we before we were born?" we have a definite answer in the system of slow development by incarnation, with long intervals of spirit rest between, while otherwise we have no answer, though we must admit that it is inconceivable that we have been born in time for eternity. Existence afterwards seems to postulate existence before. As to the natural question, "Why, then, do we not remember such existences?" we may point out that such remembrance would enormously complicate our present life, and that such existences may well form a cycle which is all clear to us when we have come to the end of it, when perhaps we may see a whole rosary of lives threaded upon the one personality. The convergence of so many lines of theosophic and Eastern thought upon this one conclusion, and the explanation which it affords in the supplementary doctrine of Karma of the apparent injustice of any single life, are arguments in its favour, and so perhaps are those vague recognitions and memories which are occasionally too definite to be easily explained as atavistic impressions. Certain hypnotic experiments, the most famous of which were by the French investigator, Colonel de Rochas, seemed to afford some definite evidence, the subject when in trance being pushed back for several alleged incarnations, but the farther ones were hard to trace, while the nearer came under the suspicion that they were influenced by the normal knowledge of the medium. It may, at least, be conceded that where some special task has to be completed, or where some fault has to be remedied, the possibility of reincarnation may be one which would be eagerly welcomed by the spirit concerned.
Before turning from the story of French Spiritualism one cannot but remark upon the splendid group of writers who have adorned it. Apart from Allan Kardec, and the scientific work on research lines of Geley, Maxwell, Flammarion, and Richet, there have been pure Spiritists such as Gabriel Delanne, Henri Regnault, and Leon Denis who have made their mark. The last especially would have been deemed a great master of French prose, whatever might have been his theme.
This work, which confines itself to the main stream of psychic history, has hardly space in which it can follow its many meanderings in lesser rivulets over every land upon the globe. Such manifestations were invariably repetitions or close variants of those which have been already described, and it may briefly be stated that the cult is catholic in the fullest sense, for there is no land which is without it.