rating, but, in so far as possible, his special abilities and disabilities. A social study is made of the child's home, school, and other environments to determine what factors may have unfavourably influenced the development of the child, and what forces may be utilized in securing the child's adjustments. The results of all these studies are given to the school authorities with recommendations relative to the needed adjustments." In New Zealand there is need of increased facilities for the study of the individual child, and the services of psychological experts should be available in order to group children according to their mental equipment and special requirements. Only those fully qualified to estimate accurately all the evidence available are fitted to decide the destiny of children. Herein lies the danger of relying exclusively upon the use of mental tests. _Mental tests_ are of definite value in enabling the observer to arrive at a conclusion regarding the general mental development of the subject, or to investigate some particular psychological function. A too exclusive dependence upon the result of the application of these tests, especially by a layman, would invariably lead to error. A comprehensive survey is necessary, taking into consideration such factors as family history, environment, physical condition, behaviour, temperament, &c. The observation, possibly for a considerable period of time, of an expert psychiatrist or psychologist may be necessary in order to arrive at an accurate estimate of the mental ability of the subject. In this regard we quote from Tredgold, "Mental Deficiency": "There are, however, very many exceptions, particularly when we are dealing with the milder grades of deficiency, so that if serial tests are depended upon for the diagnosis of these cases they may be, and often are, very fallacious. I may say here that although it would, of course, be extremely valuable if we could devise tests which would accurately measure mental capacity, particularly that capacity and those qualities which are needed for social adaptation and maintenance, we have not yet succeeded in doing so. The mental factors which may be involved in this capacity for social adaptation, and which render the individual in need of care, supervision, or control, are many and varied, and there is even some danger that too much reliance upon serial tests may distract from the adequate investigation of these qualities and defects and lead to totally erroneous conclusions." There is no doubt, however, that in the hands of competent observers properly applied tests afford information of great value in assessing mental and moral capacity, but the observer must be competent. SECTION 7.--METHOD OF DEALING WITH MENTAL DEFECTIVES IN NEW ZEALAND. _Present Legal Provision for Notification and Education of Feeble-minded Children, and for Care of Custodial Feeble-minded Adults and Children._