STRUCTURE OE THE BRAIN IN RODENTS. 
745 
Depth of Cortical Layers on a Plane with Genu of Corpus Callosum. 
Gyrus fornieatus. 
Sagittal angle. 
Extra-limbic. 
Near 
limbic sul 
mm. 
mm. 
mm. 
mm. 
First layer 
•372 
•372 
*348 
•279 
Small pyramids . 
•604 
•744 
1-023 
*558 
Granule belt . 
• • • 
• • 
•372 
0 • 
Ganglionic belt . 
•232 
*232 
•186 
•408 
Spindle cells , 
*511 
•883 
•883 
1-069 
Depth of Cortical Layers on a Plane with 
posterior border of Corpus Callosum. 
Gyrus fornieatus. 
mm. 
Peripheral zone . . *441 
Granule layer , . '418 
Ganglionic layer. . ‘465 
Spindle cells . . . '372 
Sagittal angle. 
Extra-limbic. 
mm. 
mm. 
•325 *372 
• 3 7 2 { ^ ma ^ pyramids ‘372 
1 Granules . . *372 
•604 -604 
•604 *744 
Depth of Cortical Layers of the Modified Lower Limbic Type. 
(Pabbit.) 
Peripheral cortical zone . 
Inflated cell formation . 
Ganglionic layer . 
Pale belt. 
Spindle cells . 
mm. 
•279 
*883 
•372 
•279 
•418 to *655 
Depth of Cortical Layers in the Cornu Ammonis. (Pabbit.) 
Peripheral 
Striate and Ganglionic 
Molecular 
Medullated 
zone. 
lacunar layers. cells. 
layer. 
layer. 
mm. 
mm. mm. 
mm. 
mm. 
Anterior regions. 
•325 
•930 *093 
•523 
•395 
Average at six different sites. 
•424 
•915 '112 
•397 
*385 
Average depth of whole cortex of ammon’s horn =2*233 mm. 
5 C 2 
