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ARACHNOID MEMBRANE and the DURA MATER furnishing an 

 internal periosteum to the skull and spinal canal. 



Mode in which the BRAIN is formed upon the spinal marrow 

 Fihrous structure of the brain arrangement of its corticle, or 

 cineritious, and its medullary matter Membranes of the 

 brain Its blood-vessels Its cellular tissue. 



Nervous system formed in and by the cellular tissue, like all other 

 systems It forms one complete system, though divided by 

 physiologists into several sub-systems Consequent reason- 

 ings upon its functions. 



Nerves may re-unite after wounds, and may be transmuted like 

 other organs. 



Basis of the principal errors of Phrenology It is unphilosophical 

 to attribute any totally new function to the nervous system 

 Complexity of organisation separates, perfects, or heightens 

 the vital or animal functions, but does not add new ones 

 The zoophyte has all the organic powers of man, only in less 

 degree. 



What is the peculiar function of the nervous system Nerves 

 compared to post-roads, ganglia to distributing offices Ef- 

 fects of dividing the nerves of motion or those of feeling 

 Part of the nervous system from which the mind usually re- 

 ceives intelligence of external things. 



Proofs that every nervous fibre is a distinct organ, with a distinct 

 function Phenomena of amputated limbs Sensation resides 

 in the whole fibre Grafting a nerve Taliacotian operation 

 Singular anecdote. 



Of the ganglionic system of nerves, and other sub-systems 

 PLEXUS. 



All the parts of the nervous system associated by the sympathetic 

 nerves. 



The Brain a collection of ganglia and nervous systems. 



Argument to show that CONSCIOUSNESS and WILL are not the 

 functions of any portion of the animal organisation. 



Review of the nervous systems, showing that consciousness and 

 will, in their successive stages of development, do not follow 

 the common laws of organisation These powers seemingly 

 resident in the brain exclusively, among the nobler animals. 



