124 Comparative View of 



in all classes of animals, are large or stnall, according to certain 

 qualities of the animals f^* and he admits that Gall's doctrine 

 of different faculties being connected with different parts of 

 the brain, is nowise contradictory to the general principles of 

 physiology, t 



If, then, there be reason to believe that different parts of 

 tlie brain manifest different mental faculties, and if the size of 

 the part influence the power of manifestation, the necessity is 

 very evident of taking into consideration the relative propor- 

 tions of the different parts of the brain, in a physiological in- 

 quiry into the connection between the crania of nations and 

 their mental qualities. This position is further illustrated by 

 the fact, that the native American and the European brains 

 differ widely in the proportions of their different parts. 



We have entered more minutely into the reasons why we 

 regard these measurements as important, because we conceive 

 that the distinguishing excellence of Dr Morton's work con- 

 sists in his having adopted and followed out this great princi- 

 ple. It appeared necessary to dwell upon it at some length, 

 also, because Professor Tiedemann, in his comparison of the 

 European with the Negro brain, has entirely neglected it, and 

 in consequence has arrived at physiological conclusions which 

 we regard as at variance with the most certain psychological 

 facts, viz., he says, that '' there is undoubtedly a very close 

 connection between the absolute size of the brain and the 

 INTELLECTUAL pov/ERS AND TUNCTioNS of thc miud ;" aud pro- 

 ceeding on this principle, he compares the weight of the whole 

 brain, as ascertained in upw^ards of fifty Europeans of differ- 

 ent ages and countries, with its weight in several Negroes, 

 examined either by himself or others. He gives extensive 

 tables shewing the weight of the quantity of millet seed ne- 

 cessary to fill Ethiopian, Caucasian, Mongolian, American, and 

 Malay skulls ; and adds that " the cavity of the skull of the 

 Negro in general, is not smaller than that of the European and 

 other human races." The inference which he draws is, that, 

 intellectually and morally, as well as anatomically, the Negro 



* Anatomie comparee, tonic ii. 



t Rapport Historique aur les Progrea des Sciences Naturelles, &c. p. 193. 



