Physically, habitual criminals do not resemble born criminals, but they exhibit some of the characteristics of those offenders from whom their ranks are recruited, besides, in a more marked degree, certain acquired characters, like sinister wrinkles and a shifty and sneaking look. Psychologically, criminaloids tend to resemble born criminals, whose habits, tastes, slang, tattooing, orgies, idleness, etc., they gradually develop, in the same way as old couples, living isolated in the country, adopt identical habits, gestures, and tone of voice. The type of criminaloid, who develops into an habitual criminal is well illustrated by the case of Eyraud, who in conjunction with Gabrielle Bompard, murdered Gouffré and packed the corpse in a trunk. Through his marked weakness for women, Eyraud became successively a deserter, a thief, and a murderer. He certainly possessed a few of the characteristics peculiar to degenerates--long, projecting ears, excessive development, amounting to asymmetry, of the left frontal sinus, prognathism, exaggerated brachycephaly, and the span of the arms exceeding the total height, but he had not the general criminal type, his teeth were regular, beard abundant, and hair scanty. His psychology corresponds exactly to his physical individuality. During infancy and youth, he showed nothing abnormal, except an unusual predominance of the sexual instincts. He exhibited no signs of that love of evil for its own sake, so characteristic of criminals, above all, of murderers. According to all accounts, he was a jovial individual, fond of making merry, but at the same time, brusque and violent and easily roused to passionate fury. His extreme susceptibility to the attractions of the opposite sex made him regardless of all moral considerations. In order to gratify this weakness, he became a deserter, dissipated all the money he had earned in a distillery and as a dealer in skins, and finally committed murder. At his trial, it was shown that before his escape to America, he had attempted to kill a woman who refused to leave her husband for him. He became violently enamoured of his accomplice, Gabrielle Bompard, to whom, like many criminaloids, he was attracted by reason of her greater depravity. The extreme levity displayed by Eyraud seems to be the strongest link between him and the born criminal. He passed with extraordinary facility from gaiety to melancholy. His intellect was well developed, he spoke three or four languages, and was successful in most things he undertook, though he seems to have been incapable of remaining constant to anything for long. As a business man he wasted his capital, and even in the execution of his crimes he showed frivolity and incoherence. At Lyons, he hired a carriage, in which he placed the corpse of Gouffré and after driving about the streets with Gabrielle Bompard like a madman, left the body of his victim in a spot near which people were constantly passing.