 The profound alterations that animal spirits can undergo explain the true and proper transformations that occur in someone who has been bitten by a rabid dog or in peasants from Puglia attacked by tarantulas. Campanella gives a very precise description of what happens to those bitten by tarantulas, based on eye-witness accounts of the phenomenon: they become weak, dancing and jumping to the sound of various musical instruments, until they collapse in exhaustion. In both cases acrid spirits introduced into the wound produce an alteration of the temperament and the imagination of the unfortunate victims, in whose bodies the animal spirits of the creatures that have attacked them take the upper hand in a manner that is at variance with those already there. By means of dancing and sweating, those bitten by tarantulas endeavor to expel the infected vapors. Usually, however, the symptoms remain as long as the cause that produced them persists; and only the death of the spider that stung them will bring a true remission of their suffering. The connection between general and particular causes is confirmed again by the odd case of the medical school of Tropea in southern Italy, in which a nose was grafted onto a man who had lost his due to a wound. The doctors reconstructed the new nose from flesh taken from the arm of a servant. The new nose took root and lived; but when the servant died, it putrefied, demonstrating that the life that it had received from the new organism in which it was inserted did not annihilate its original and deep-rooted connection to the life of the servant.