'At first it seems thunderstruck. It remains fixed in one place as if stunned. At the end of two or three minutes there follow on this stupor the most frightening agonies.'
'Suddenly it stiffens its paws, and then makes, all at once, a prodigious leap in the air. The poor little creature, ordinarily so harmless, takes on an entirely unexpected expression of ferocity. It resembles an hydrophobic animal with its convulsed face, its twisted lips covered with foam. In its eyes — wide open, haggard, convulsive, mad, one reads an impulse to kill.'
'It is now prey to hallucinations. Directly its spine curves in a half-circle. Its members and whole body are thrilled with shocks interrupted by plaintive cries. Then a brief moment of calm. The attack recommences, showing at each fresh crisis signs of accumulated violence.'
