ri/.'/./ OF CONTENTS xxxi 



PAOK 



The Envelopes of tboOeretno-vpinal Ash 



1. The Dura Mater . . KG1 



2. The Arachnoid ....... 663 



::. Tin- Pia Mater ....... 665 



Hill', rent ial Characters in the Protecting and Knvolojiing Parts of Ihc 



Cerebio-s|>inal A\i.> in other than Soli]>ed Animals . . . 660 

 CompariMm of tin- Protective and Kmt-Ioping Part* r.f tlie Orebro-Bpinal 

 Axis of Man with those of Animals 



Tlie Spinal Cord ....... 666 



rnnl Conformation of the Spinal Cord . . . 666 



Internal Conformation and Structure nl' tlie Spinal Cord . . . 668 

 Differential Charaoten in the Spinal Cortl of tlie Horn. Mi.-ated .Mammals 



other than Solipeds ...... tlT'J 



M'ii ot th. -Spinal Cord of Man with that of Animals . . C,7'-' 



III. Tlie Knctphalon ...... 672 



Article i. Tlie Knceiihalon n.s a Whole ..... 672 



Article ii. The Isthmus . ...... ;?:> 



External Cm format ion of the Isthmus ..... 675 



1. Tlie Medulla Oblongata ..... 676 



2. The Pons Varolii ..... .677 



3. The Crura Cerebri . ... 677 



4. The Crura Cerebelli . . . . . .678 



The Valve of Vieussens ...... 679 



6. The Corpora Quadrigemina, or Bigemina .... 679 



7. The Optic Thalami ...... 679 



8. The Pineal Gland . . . . . . .680 



9. The Pituitary Gland ..... 681 

 Internal Conformation of the Isthmus ..... 682 



1. The Middle Ventricle, or Ventricle of the Optic Thalami 682 



2. The Aqueduct of Sylvius . . 683 



3. The Posterior, or Cerebellar Ventricle . 683 

 Structure of the Isthmus . ... . . 683 



Differential Characters in the Isthmus of other than Soliped Animals . cs.'i 



Comparison i -ft h- I>thmii8 of Man with that of Animals . . . 685 



Article m The Cerebellum ... .686 



1. Kxternal Conformation of the Cerebellum . . . 686 



2. Internal Conformation of the Cerebellum . 688 

 I>ilV. lential rhnrncters of the ( Vrel Hum in other than Soliped Animals . 689 

 Comparison of the Cerebellum of Man with that of Animals . . 689 



Artiele i\. The (Vrel.rum ... . 689 



Kxt-nial Conformation of the Cerebrum .... 690 



1. The Longitudinal Fissure . .... 690 



2. The Cerebral Hemispheres ..... ::M 

 Internal Conformation of the Brain ..... 692 



1. Tlie Corpus Callosnm ...... 



2. The Lateral, or Orelnul Vent: id.- . . _ c.'.i:! 



3. The Septum I.ucidum . . . <'.'.>[ 

 \. The (Vjt-l.rnl TiL'onum (or T'ornix) . . . C'.iJ 



5. The Hipix)camii ...... 



6. The C"n*>ra Strinta ..... 



7. The Cerebral ( hoioid Plexus, and Velum Interpositum . . 696 

 nre of the Cerebrum ..... 



liitVi -n -nti.il (,'haraet- r.- in the Brain of other than Solij>e.l Animals . 698 

 Comparison of tin Hrain of M-.m \\itli lh.it of Aniin.il- 



