73 



r-iraly until the tip is reached, whsrj it dissolves into a 

 brash or a series of hooks spreading, over a relatively consid- 

 erable area. There are no ^emmules. 



The axone is exceedingly slender. It may arise directly 

 from the cell-body, but it usually takes its origin from one 

 of the dendrites, either near the base or at some distance 

 from the cell; Pig. It illustrates the two modes of formation. 

 The course of the axone is invariably peripheral, pushing through 

 the intervening thickness of the granular layer into the molec- 

 ular layer. At the boundary between the t^fo layers, the course 

 changes abruptly to a horizontal one for a short distance, and 

 hence the entire course of an axone can rarely be traced in 

 one section. In the molecular layer, the axone divides into 

 two branches which, with the original stem, form a T-shaped 

 figure (F'ig.f ). The two branches parsje a course parallel 

 with the surface of the cerebellum and the sides of the fold 

 in which they run. It is thus seen that they pass through the 

 dendritic tops of the neurones of Purkinje, comparable to tel- 

 ephone wires passing through the tops of the trees along a 

 highway. 



b. Golji Veurones. — A few neurones of the granular layer 

 have an altogether different character from the ones just iescri- 

 bei. These lie in the upper levels of the layer. Such a neu- 

 rone is shown in ''ig.l?. The cell-body is always a little 

 larger than that of the typical granule neurone, and its form 



