266 



University of California Puhlications in Anatomy ["^'ol. 2 







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Fig. 61, Experiment II. This figure shows finer details of the afferent 

 exogenous fibers in the precentral agranular "motor" cortex, area giganto- 

 pyramidalis or field 4 of Brodmann. (Compare with figs. 6 and 7.) Although 

 here a number of exogenous fibers approach the course of the ' ' radiated ' ' fibers, 

 many show a more or less oblique direction being distinct from the actual 

 radiary bundles. (Compare with figs. 63, 64.) Some especially close to the 

 and within the stripes of Baillarger (upper part of the figure) have even an 

 horizontal course. The number of exogenous fibers in the "motor" cortex 

 appears to be rather greater than in the postcentral areas 1 and 2, as com- 

 parison of this figure with figures 58 and 59 demonstrates; it is, however, below 

 that of the "focal zone" of the somatic sensory cortex. (See preceding figure.) 



