magical purposes was no commonplace mechanical craft, but a special and secret art appropriated to men who cultivated with assiduity all that was then known of natural science in order to extract from it agencies that might appear supernatural. Possibly, then, the rods or wands of the East, of which Scripture makes mention, were framed upon some principles of which we in our day are very naturally ignorant, since we do not ransack science for the same secrets; and thus, in the selection or preparation of the material employed, mainly consisted whatever may be referrible to natural philosophical causes in the antique science of Rhabdomancy, or divination and enchantment by wands. The staff, or wand, of which you tell me, was, you say, made of iron or steel and tipped with crystal. Possibly iron and crystal do really contain some properties not hitherto scientifically analyzed, and only, indeed, potential over exceptional temperaments, which may account for the fact that iron and crystal have been favourites with all professed mystics, ancient and modern. The Delphic Pythoness had her iron tripod, Mesmer his iron bed; and many persons, indisputably honest, cannot gaze long upon a ball of crystal but what they begin to see visions. I suspect that a philosophical cause for such seemingly preternatural effects of crystal and iron will be found in connection with the extreme impressionability to changes in temperatures which is the characteristic both of crystal and iron. But if these materials do contain certain powers over exceptional constitutions, we do not arrive at a supernatural but at a natural phenomenon." "Still," said I, "even granting that your explanatory hypotheses hit or approach the truth;--still what a terrible power you would assign to man's will over men's reason and deeds!" "Man's will," answered Faber, "has over men's deeds and reason, habitual and daily, power infinitely greater and, when uncounterbalanced, infinitely more dangerous than that which superstition exaggerates in magic. Man's will moves a war that decimates a race, and leaves behind it calamities little less dire than slaughter. Man's will frames, but it also corrupts laws; exalts, but also demoralizes opinion; sets the world mad with fanaticism, as often as it curbs the heart's fierce instincts by the wisdom of brother-like mercy. You revolt at the exceptional, limited sway over some two or three individuals which the arts of a sorcerer (if sorcerer there be) can effect; and yet, at the very moment in which you were perplexed and appalled by such sway, or by your reluctant belief in it, your will was devising an engine to unsettle the reason and wither the hopes of millions!" "My will! What engine?" "A book conceived by your intellect, adorned by your learning, and directed by your will, to steal from the minds of other men their persuasion of the soul's everlasting Hereafter." I bowed my head, and felt myself grow pale.