Archives of neurology and psychopathology. . bronchialand laryngeal secretion already spoken of may be on atrophic basis. We emphasized the necessity of considering the imme-diate and the remote consequences of operation onthe sympathetic system. The remote effects may bereparatory, or they may be progressively destructive. We called attention to a mode of research that mayelicit information not obtainable with the usual methodsof investigation. This method consists in awaiting theappearance of phenomena of compensation which often in-struct us whether a certain set of fibres or a definite ner
Archives of neurology and psychopathology. . bronchialand laryngeal secretion already spoken of may be on atrophic basis. We emphasized the necessity of considering the imme-diate and the remote consequences of operation onthe sympathetic system. The remote effects may bereparatory, or they may be progressively destructive. We called attention to a mode of research that mayelicit information not obtainable with the usual methodsof investigation. This method consists in awaiting theappearance of phenomena of compensation which often in-struct us whether a certain set of fibres or a definite nerveor ganglion is concerned exclusively in the performanceof a given function, or whether other nerves and gangliashare in the enactment of this function. Illustrations of RECAPITULATION OF THE RESEARCHES. 187 this are given by us in the observations made on the pupilof a cat in which the stellate ganglion had been removed. II.—Morphological.—We concluded that in the cat mostof the afferent (sensory) fibres of the sympathetic nerves pare. Text-Figure 9.—Diagram illustrating the spinal representation orlocalization of the sympathetic nerve as made very probable from thedegenerations following lesions of the sympathetic chain. CI. = Clarkes Z. — Intermediate N. =Bechterews at. — Lateral horn = Paracentral group. do not originate from cells of the spinal ganglia, as Kol-liker claims, on the contrary they must have (as Dogielassumes) their cells of origin within the ganglia or plexusesof the sympathetic system. 188 EXPERIMENTAL RESEARCHES ON THE SYMPATHETIC. Our reseai-ches make it probable that the efferent fibresof the sympathetic take their origin from the cells of thefollowing groups: ist, the paracentral group; 2d, the smallcells of the lateral horns, and 3d, probably also the smallcells of the intermediate zone. The afferent fibres on theother hand are connected by their terminal arborizationswith the cells of Clark
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