All his powers M. Flournoy bent to elucidate the mystery. He made up his mind that Hélène must somewhere have come across one of the works containing Flammarion's speculations concerning Mars. The landscapes were suggested by Japanese lacquer and Nankin dishes. As for the language, it is just such a work of art as one might form by substituting for each word in the French dictionary an arbitrary collocation of letters, and for each letter a new and arbitrary symbol. The vowel and consonant signs are the same as in French; so are the inflections, the grammar, the construction. (Take, for example, the negative ke ani=ne pas, the employment of the same word zi to express both la "the" and là "there.") If it is childish as a work of art, it is miraculous enough as a feat of memory. But the reader has not forgotten what the subliminal self is capable of achieving as regards time appreciation mentioned in an early chapter. When, however, it comes to Hélène's telepathic and clairvoyant powers, M. Flournoy, in spite of his long investigation, can find no explanation of the supernormal to fit the case. Her mediumship since 1892 included manifestations of all kinds. They began with physical phenomena, but they soon ceased. Her clairvoyant messages during trance are certainly of a remarkable character. Her reception of distant scenes and persons, of which she was apparently unacquainted, has been carefully investigated and authenticated by numerous persons of reputation. It is this aspect of spiritualism which has of recent years commanded most attention from trained observers. The trance utterances of such well-known clairvoyants as the late Stainton Moses, Mrs Thompson, and Mrs Piper have been subjected to rigid and precise inquiry, and on the whole it is on this type of evidence that the strongest arguments of the genuineness of spiritualism really rests. It is at once the most impressive, the most interesting, and the most voluminous. * * * * *