Vlll CONTENTS. 



The Size and Importance of the Brain are suited to this 



Office 92 



Proofs from the History of the Mind 93 



Correspondence of Intellectual Phenomena and Cerebral 



Developement in Animals 94 



An Immaterial Principle as necessary to them as to Man. . 95 



No other Office can be discovered for the Brain 96 



Insanity proceeds from Disease of the Brain, as disturbed 

 Functions in other Cases do from Diseases of the 



respective Organs 97 



Proof from Dissection 99 



• ■ ■ — the Effect of Medical Treatment — 



NATURAL HISTORY OF MAN. 



Chapter I. — Nature and Objects of the Inquiry ; arid Mode of In- 

 vestigation — The Subject hitherto neglected, and very erroneous 

 notions consequently prevalent.— Sources of Information. — Ana- 

 tomical Characters of the Monkey Tribe, and more particularly 

 of the Orang-utang and Chimpanse, — Specific Character of Man. 



Extent and Importance of the subject \CH 



Hitherto comparatively neglected 104 



Opinions of Monboddo and Rousseau respecting our Af- 

 finity to Monkeys 106 



Supposed Gradation from Man to Animals I07 



Tlie Writings of Buffon, Blumenbach, and others j and 



particularly of Dr. Prichard 109 



LiNN.'EUs's Arrangement of Man 110 



General Characters of the Quadrumanous Mammalia .... Ill 



Simla Satyrus, or Orang-utang 112 



S. Troglodytes, or Chimpanse 114 



Zoological Character of Man — 



Sect. I. 



DISTINCTIONS BETWEEN MAN AND ANIMALS, OR 

 SPECIFIC CHARACTERS OF MAN. 



Chapter 11,— The Erect Attitude of Man, and consequent Pecu- 



