Has the criminal any bodily and mental characteristics which differentiate him from the ordinary man? Does he differ from his fellows in height and weight? Does he possess a peculiar conformation of skull and brain? Is he anomalous in face and feature, in intellect, in will, in feeling? Is he, in short, an individual separated from the rest of humanity by any set or combination of qualities which clearly mark him off as an abnormal being? As these matters are at present exciting considerable attention, let us now look at the criminal from a purely biological point of view. A good deal of diversity of opinion exists among competent authorities respecting the stature of criminals. Lombroso says that Italian criminals are above the average height; Knecht says German criminals do not differ in this respect from other men; Marro says the stature of criminals is variable; Thomson and Wilson say that criminals are inferior in point of stature to the average man. Whatever may be the case on the Continent, there can be little doubt that as far as the United Kingdom is concerned, the height of the criminal class is lower than that of the ordinary citizen. In Scotland the average height of the ordinary population is (559) 67.30 inches; the average height of the criminal population, as given by Dr. Bruce Thomson, is (324) 66.95 inches. According to Dr. Beddoe, the average height of the London artizan population is (318) 66.72 inches; the average height of the London criminal (300) 54.70 inches; the average height of Liverpool criminals, according to Danson, is (1117) 66.39 inches. Danson's figures point to the fact that there is hardly any difference in height between the criminal classes of Liverpool and the artizan population of London It has, however, to be borne in mind that the population of the North of England, being largely of Scandinavian descent, is taller than the population of the South of England. The height of Liverpool criminals should be compared with the average height of the Scotch, to whom they are more nearly allied by race. If this is done, it will be seen that they fall considerably short of the normal stature.