Wherein is that less miraculous than evocation of demons, than spells cast by magicians or pastors?
A larva, a flying spirit, is not, indeed, more extraordinary than a microbe coming from afar and poisoning one without one's knowledge, and the atmosphere can certainly convey spirits as well as bacilli.

Certainly the ether carries, untransformed, emanations, effluences, electricity, for instance, or the fluids of a magnet which sends to a distant subject an order to traverse all Paris to rejoin it.
Science has no call to contest these phenomena.

On the other hand, Dr.
Brown-Sequard rejuvenates infirm old men and revitalizes the impotent with distillations from the parts of rabbits and cavies.

Were not the elixirs of life and the love philtres which the witches sold to the senile and impotent composed of similar or analogous substances?
Human semen entered almost always, in the Middle Ages, into the compounding of these mixtures.

Now, hasn't Dr.Brown-Sequard, after repeated experiments, recently demonstrated the virtues of semen taken from one man and instilled into another?
"Finally, the apparitions, doppelgaenger, bilocations--to speak thus of the spirits--that terrified antiquity, have not ceased to manifest themselves.