04 MR. W. BE VAN LEWIS ON THE STRUCTURE OF THE CORTEX CEREBRI. 
- References to Plates. 
PLATE 6. 
The five-laminated cortex cerebri of the Sheep and Pig. as seen in vertical sections 
taken from the limbic lobe. 
A. First layer exhibiting large numbers of Deiter’s cells beneath pia mater. 
B. Second layer of small pyramidal and angular elements which in the Pig- 
form’by their branches a dense meshwork in the lower regions of the first 
layer. 
C. Third layer of large pyramidal cells. 
D. Fourth layer or ganglionic series. 
E. Spindle cells of fifth layer. 
PLATE 7. 
From the six-laminated cortex of the Sheep. The five upper layers are alone seen, the 
spindle or sixth layer being excluded. A belt of small angular elements is seen 
at D, interposed between the large pyramidal (C) and the ganglionic layers 
(E). X 55. 
A group of ganglionic cells from the five-laminated cortex of the Pig. X270. 
Section through the cortex cerebri of the Pig. This section having been taken from a 
sulcus in the limbic lobe exhibits the laminar or solitary arrangement of the 
ganglionic cells, as contrasted with the appearance of the “ nests ” of Betz seen 
in the group above. X 98. 
Note .—All the above have been sketched under high powers, and reduced subse¬ 
quently by photography. 
