Py.S. 



FIG. 530. SCHEME OF THE MOTOR AREA OF THE CEREBRAL CORTEX, SHOWING THE 

 EFFECT OF VARIOUS STAINING METHODS. 



1, Golgi's stain; 2, Weigert's stain; 3, hematein and eosin; 4, relative depth of 

 each layer. A, association neurons; Ag, angular cells of the polymorphous layer; 

 As F, association fibers; Ax, axons; C, collateral; C F, centripetal fibers; E, terminal 

 fibers; F, fusiform cell of the polymorphous layer; G, Golgi cells, Type II; M, cells 

 of Martinotti; P C, collateral of a pyramidal cell; Py, pyramidal cells; Py ax, axon 

 of a pyramidal cell; Py S, pyramidal axons passing to the cerebral medulla. (After 

 Berkley.) 



