M. G. Schlapp a9 
VERATTI.—Ueber einige Structur eigenttimlichkeiten der Hirnrinde bei den 
Siugetieren. Anat. Anz., Bd., XII, No. 14. 
Vas.—Studium ueber dem Bau des Chromatins in der sympathischen Gang- 
lienzelle. Arch. f. mikr. Anat., Bonn, Bd. 40. 
WERNICKE, C.—Grundriss der Psychiatrie. Leipz., 1894. 
ZIEHEN.—Centralnervensystem. J. Th. Ein Handbuch der Anatomie des 
Menschen. Herausg. von v. Bardeleben, Bd. IV, p. 402. 
DESCRIPTION OF FIGURES ON PLATES I, If, III AND IV. 
Fic. 1. Olfactory cortex of man. 
A. Layer of glia cells and outer layer of tangenital fibers. 
B. Outer layer of polymorphous cells, cell group formation. 
C. Mixed cells. 
D. Inner layer of polymorphous cells. 
Fic. 2. Olfactory cortex of the Pteropus. 
B. The characteristic formation of cell groups in the outer layer of 
polymorphous cells. 
Fig. 3. Olfactory cortex of the dog’s brain. 
B. The characteristic formation of cell groups in the outer layer 
of polymorphous cells. 
Fie. 4. Cortex from the anterior portion of the gyrus cinguli (Limbic lobe), 
where the latter passes onto the convex surface of the hemi- 
sphere. (Presumably, the olfactory region in connection with 
the motor cortex.) Horse’s brain. 
A. Layer of glia cells and outer layer of tangential fibers. 
B. Outer layer of polymorphous cells, showing the characteristic 
cell group formation. 
C. Layer of parapyknomorphous pyramidal cells. 
D. Layer of pyknomorphous pyramidal or motor cells. 
D’. Inner stripe of Baillarger. 
E. Inner layer of polymorphous cells. 
Fie. 5. Cortex from the motor area of the dog’s brain. 
1. A. Layer of glia cells and outer layer of tangential fibers. 
B. Outer layer of polymorphous cells. 
C. Layer of parapyknomorphous pyramidal cells. 
D. Layer of large, or pyknomorphous pyramidal cells. 
E. Inner layer of polymorphous cells. 
Fic. 6. Cortex from the motor area of the brain of the monkey. (Anterior 
central gyrus.) 
A. Layer of glia cells and outer layer of tangential fibers. 
. Outer layer of polymorphous cells. 
. Layer of parapyknomorphous pyramidal cells. 
. Layer of large, or pyknomorphous pyramidal cells. 
. Inner layer of polymorphous cells. 
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