ON DISTRIBUTION OF THE CELLS IN THE INTERMEDIO-LATERAL TRACT. 131 



Physiology. 



Gaskell, "Structure aud Function of Visceral Nerves," Jo-urn. Physiol., 1886 and 1889. 



J. N. Langley, "On the Medullated Fibres of the Sympathetic," Joum. Physiol., 1892. 



Quain, Anatomy, 10th edition, vol. iii. part ii. 



H. K. Anderson, "Central Origin of the Cervical Sympathetic Nerve," Joum. Physiol., 1902, p. 510. 



Percy T. Herring, "Spinal Origin of the Cervical Sympathetic Nerve," Joum. Physiol., 1903, p. 282. 



Biedl, "The Splanchnic Centres," Wien. klin. WochnscJir., 1895, p. 915. 



Josef Nottebaum, "Secondary Degeneration after Section of Cervical Sympathetic," Marburg, 1897. 



Lapinsky and Cassirer, " Spinal Origin of Cervical Sympathetic," Ztschr. f. Nervenheilh., vol. xix. 



Cassirer, " Anatomy and Physiology of the Vaso-motor Tracts and Centres," 1901. 



Pathology. 

 Lannois and Porot, " Erythromelalgia, followed by Gangrene of the Extremities," Rev. de Med., 1903, p. 824. 



DESCRIPTION OF PLATE. 



Graphic representation of the arrangement of the cells of the intermedio-lateral tract in the various 

 segments in which it is found. 



The numbers below the graph indicate tens of sections. 



The numbers placed at the left-hand side of each segment indicate tens of cells. 



+ + + in the graph indicate that the number of cells was not ascertained. 



