REMARKS on the RELATIONS of DIFFERENT DIVISIONS of the CENTRAL NERVOUS SYSTEM to ONE ANOTHER and to PARTS of the BODY

[AFTER expressing his inability properly to thank the Society for asking him to deliver this Lecture, and after remarking on the study of nervous maladies as Dissolutions, Dr. Hughlings Jackson said:] For the kind of work indicated some scheme of the whole nervous system is necessary. A morphological one, such as spinal cord and encephalon, or such as cord, medulla, pons, cerebellum and cerebral hemispheres, will not serve us. We must have onie after degrees of directness and complexity with which nr rvous centres, or, as I shall say, Levels, represent impressions and movements of parts of the body; this is an anatomical not merely a morphological scheme. I divide the central nervous system into two Sub-systemsCerebral and Cerebellar. The two have what I call the Lowest Level in common, or in other words that level is the lowest level of the cerebral sub-system and of the cerebellar sub-