We have been reproached in this country with failure to make a scientific study of the criminal; and the works of foreign writers have been translated for our example and emulation. They contain a certain amount of information, but its value is not apparent. The importance of a book is not to be measured by the difficulty of understanding it. Big and strange words may as easily mask an absence of useful knowledge as convey a fruitful idea, and the man who has anything of importance to say regarding his neighbour--even though that neighbour is a criminal--does not require a pseudo-scientific jargon in which to say it. The criminal is a man or a woman like the rest of us, and information about his head or his heels, while it may have a special value in relation to his case, should not be confounded with knowledge of himself. He is something more than a brain or a stomach. Either the so-called criminal characters are the cause of the man's wrongdoing, the result of it, or have nothing to do with the matter. If they are the cause of the criminal act, how is it that they are admittedly present in others who are not criminals? It would certainly simplify the work of the police if they knew that they could with any degree of safety look for the perpetrator of certain kinds of crime among men with heads of a given shape; but anyone who glances at the illustrated papers will see for himself as many villainous-looking faces among notable people, even among able people, as he will find in a prison. Our forefathers had a rule that when two persons were charged with the same crime and there was a doubt which of them was guilty, the uglier should be condemned. It is not stated whether the officials and governing classes were at that time chosen for their good looks. Fortunately the practice has long since lapsed. Unless a peculiarity is shown to have a causal relationship to crime its mere existence proves nothing except the fact that it is there. That in some cases physical defects do cause those who suffer from them to make war on society, is undoubtedly the case; but it is very far indeed from being the rule.