What this table means is this: If we measure 100 children in an elementary school, we find only a small number (at most 10 per cent.) whose measurements are less than those indicated; if, on the other hand, we measure idiots and imbeciles, the proportion of those whose measurements are inferior is greater, amounting to over 25 per cent. Amongst 120 abnormal children we found not a single one who was below these frontiers in two measurements, whilst 10 per cent. of defectives were below. Certain measurements, therefore, are distinctly suggestive, although, no doubt, not absolutely diagnostic without reference to the subject examined. _The Stigmata of Degeneration._--Everyone has heard of the physical malformations which are called the stigmata of degeneration. Some of these are very apparent, such as a sixth finger on the hand, or a hare-lip, or those deformities of the head, which are called _plagiocephalus_ (obliquely oval cranium), _scaphocephalus_ (boat-shaped cranium), etc. Other stigmata are less apparent, such as abnormal shapes of the ear, irregular growth of hair, of the teeth, alterations in the eye, etc. Some doctors, not all, have made a study of these various stigmata. But school directors and teachers know nothing about them except what the present-day widespread popularisation of medical knowledge has permitted them to know. Evidently it is no part of their business to take up the study, although no State diploma will prevent their doing so if it is their good pleasure. There is no law against it. But they would expose themselves to grave risks of erroneous interpretations owing to their ignorance of the manner in which stigmata are produced, and the ignorance of doctors on this subject is still great. The determination of the stigmata, their enumeration, and their description, belong, therefore, at any rate by preference, to the doctor. God save us from wanting to dispossess him!