Thompson, Medullatmt of Cortical Fibers, 



361 



regions.^ They are, in his terminology, i) the zonal layer; a 

 thin layer appearing at the surface of the cortex ; 2) the layer 

 of the fibers of the II and III Meynert layers, a thick layer 

 lying just below the zonal layer ; and, 3) a thick innermost 

 layer, called the " Outer Association layer," because it is outer 

 with reference to the association fiber systems with which Mey- 

 nert dealt. ^ Beside these three principal layers, there is one 

 very important stratum of fibers which Kaes classes as a part of 



ZotlclI Iciy^er. 



n and in Meyneri layers. 



Slripe of Gennari 

 Bciillcir<5er. 



Ouf er -A.88ociafion 



FiLrae 

 propriae 



of Meynerf. 



Figure i. — Semidiagrammatic representation showing the arrangement of 

 the cortical fibers in a section of the occipital cortex of a male child of i^ 

 years. From Theodore Kaes, 1894. 



The designations used are the same as those in Kaes' papers. 



I. p. 2; 3, pp. 6-7. 

 8, p. 3- 



