OF THE ORANG UTANG. 21 



The internal anatomy of the simious brain does not furnish us, 

 then, with those sharply differentiating characteristics which have 

 been supposed to put it into a position of such marked inferiority 

 to that of man. 



As to the external anatomy, whilst too little importance has 

 perhaps been assigned to the points of difference which the very 

 widely differing antero-posterior diameters of the corpora callosa, 

 and of the frontal lobes, and the very widely differing absolute 

 weights of the two brains, constitute, too much seems to have been 

 given to the ' absence of an external perpendicular fissure/ to the 

 ' presence of a lobule of the marginal convolution/ and to the lesser 

 relative size of the nerves in the human brain. Upon most other 

 points, I find myself in agreement with most other writers, both as 

 to facts and to inferences; the cumulative weight of the many 

 minor points of agreement and difference, the reader will be best 

 able to appreciate, by massing each order of facts together for 

 himself. 



The principles of the idealist teach him that the difference which 

 exists between the soul of man and the life of the beast which 

 perishes, is not one which can be weighed or measured, be drawn 

 or figured, be calculated in inches or ounces. He fearlessly ac- 

 knowledges that the anatomical truth in this matter lies on the 

 boundary line of the conterminous positions taken up by Buffon 

 and Professor Huxley, respectively ; for he feels that yet higher 

 truth is expressed in the golden words but recently rescued from 

 long oblivion : — 



' On earth there is nothing great but man ; 

 In man there is nothing great but mind.' 



Description of Plate I. 



These four views of the brain of the orang are copies of photo- 

 graphs taken of it by Messrs. Hills and Saunders, of Oxford. The 

 brain had been carefully hardened in spirit for as much as two 

 months before it was thus photographed. The figures are num- 

 bered in the order in which the photographs were taken. The 

 numbers placed upon the convolutions on the exterior surface of the 

 brain will be found to correspond with those similarly employed by 



