It is maintained by most authorities that this nervousness is inherited, but it has been demonstrated clinically by Chiropractic that results are readily obtained by chiropractic adjustments. It is reasonable to assume that there are environmental conditions which might produce nervousness even in the small infant, but it is also recognized that if the child is normal he soon becomes accustomed to the peculiarities of the environment and pays little or no attention to them. Subluxations in the cervical region, usually atlas or axis, are found in these children. These subluxations may produce sufficient cord pressure to cause such symptoms as usually manifest themselves in malnutrition as so-called nervous indigestion and other symptoms which would indicate constitutional disorders. A very careful analysis reveals that the nervousness in some of these cases is adaptative to some other incoördination. If the nervousness is direct the major adjustment will be Up.C. with a possible combination of C.P. and K.P. If the nervousness is adaptative, then a very careful analysis must be made to determine the incoördination to which it is adaptative. The major then will be determined by the location and the family involved. CONVULSIONS A convulsion is a violent involuntary contraction of muscles which ordinarily contract only under direction of the will. It may be either clonic or tonic. A clonic convulsion consists of a spasm of the muscles with alternating contractions and relaxations while the tonic spasm consists in constant rigidity of the muscles involved. The contractions may be confined to certain muscles or sets of muscles as, for example, the muscles of the face, the trunk or the extremities. In some cases the muscles of the entire body are involved. During the first eighteen months of life the child is more susceptible to convulsions than at a later age, although the condition is rather common during childhood. Convulsions accompany many incoördinations and are considered adaptative to some other condition. Therefore the first thing to consider in a case of this kind is the primary condition or the incoördination to which the convulsion is adaptative. The more common conditions with which convulsions are associated are: Incoördinations involving the nervous system, such as cerebra-spinal conditions; rachitis; and organic and functional disorders. Any condition which produces an irritation of the nervous system may result in a convulsion of more or less violence. For this reason children are often subject to convulsions during dentition and disorders resulting in slight temperature. Cerebral tumors, abscesses of the brain, hydrocephalus and meningitis are examples of cerebral conditions in which convulsions are commonly found. Subluxations in the upper cervical region are often produced at the time of birth which cause cord pressure, making the child susceptible to all conditions that would irritate the nervous system.