This seance took place in 1706.

These four members of the royal family were then full of health and strength; and they all died before the king.

It was the same thing with M.le prince, M.le duc, and M.le prince de Conti, whom she likewise did not see, though she beheld the children of the two last named; M.du Maine, his own (Orleans), and M.le comte de Toulouse.
But of course this fact was unknown till eight years after." Science may conceivably come to study crystal visions, but veracious crystal visions will be treated like veracious dreams.

That is to say, they will be explained as the results of a chance coincidence between the unknown fact and the vision, or of imposture, conscious or unconscious, or of confusion of memory, or the fact of the crystal vision will be simply denied.

Thus a vast number of well- authenticated cases of veracious visions will be required before science could admit that it might be well to investigate hitherto unacknowledged faculties of the human mind.