74 Journal of Comparative Neurology and Psychology. 



plete) removal of a lateral lobe of the cerebellum cause rolling move- 

 ments to the side of the lesion, or a tendency to it. The most marked 

 rolling was observed after lesion or section of the middle peduncle. 

 Studies ou the changes in the mobility of the eyeballs were also con- 

 ducted. R. p. 



Woodworth, R. S. and Sherrington, C- S. A Pseudaffective Reflex and 

 its Spinal Patli. Jour, of Physiol., 1904, 31, 234-243. 



The lateral column furnishes the headward path in the spinal cord 

 for nociceptive (algesic) arcs ; each lateral column conveys such im- 

 pulses from both lateral halves of the body, and somewhat preponder- 

 antly those from the crossed half; these relations are true whether the 

 arcs be traced from skin, muscle or viscus. r. p. 



Langley, J. N. On the Question of Commissural Fibers between Nerve C'ells 

 having the Same Function and situated in the same Sympathetic Ganglion, 

 and on the Function of Post-Ganglionic Nerve Plexuses. Jour, oj Physiol., 

 1904, 31, 244-259. 

 Concludes that since pilo-motor nerve-cells, in a given ganglion of 

 the sympathetic system can be shown not to be connected with each 

 other by commissural fibers, and that the same is true of pupillo-dilator 

 and vaso-motor nerve-cells, it is fair to assume "that none of the 

 nerve-cells of the sympathetic system, and none of the similar nerve- 

 cells on the course of the cranial and sacral nerves are so connected." 



R. p. 



Langley, J, N. and Anderson, H. K. The Union of Different Kinds of 

 Nerve Fibers. Joitr. of Physiol., 1904, 31, 365-391. 



The nerve fibers dealt with are divisible into four classes, (a) the 

 efferent fibers which run from the central nervous system and end in 

 multi-nuclear striated muscle cells (efferent somatic fibers), (b) the 

 efferent fibers which run from the central nervous system and end in 

 ganglion cells (pre-ganglionic fibers), (c) the efferent fibers given off 

 by the peripheral ganglia (post-ganglionic fibers) and (d) afferent fibers 

 connected with nerve cells in the posterior root ganglia. The general 

 conclusions drawn from the experiments are, (i) The central end of an 

 efferent fiber can make functional connection with the peripheral end of 

 any other efferent fiber of the same class whatever be the normal action 

 produced by the two fibers. (2) The central end of any fiber of class 

 (a) can make functional union with the peripheral end of any fiber of 

 class (b), and the central end of any fiber of class (b) can make func- 

 tional connection with the peripheral end of any fiber in class (a). 

 (3) The peripheral ends of cut nerve fibers appear to have a chemo- 

 tactic influence on the central ends. The chemotactic action is strong- 



