578 



in those cases where one lateral sinus is larger than the other there 

 does not seem to be any predilection for one or the other side. This 

 applies also to all the examples of Hylobates, Simla and An- 

 thropopithecus niger that are accessible to me. It is a curious 

 circumstance that in the three specimens of Gorilla in my possession 



the right lateral sinus is the 

 larger and seems to be the pro- 

 longation of the superior longi- 

 tudinal sinus. 



It is a noteworthy and very 

 suggestive fact that a symmetrical 

 form of brain and occiput occurs 

 much more frequently in the 

 Negro than in the Egyptian and 

 European. The brain shown in 

 my memoir (op. cit. supra, Plate 

 B, Fig. 3) may be regarded as 

 typically Negroid. Such a sym- 

 metrical arrangement of the 

 visual cortex occurs in less than 

 ten per cent of Egyptian brains, 

 whereas it is found much more 

 often than not in the Negro. 

 In this respect the Negro is distinctly more Simian than the Non- 

 negroid Races. In the white Races there seems to have been a 

 greater specialisation of the two cerebral hemispheres than in the case 

 of the Negro and in the former the resulting dissimilarity of shape in 

 the cerebral hemispheres produces a cranial asymmetry. The sym- 

 metry of the Negro cranium is thus a sign of inferiority. 



Fig. 3. The head of an Egyptian showing 

 protuberant occiput. 



Nachdruck verboten. 

 Ueber die Abhängigkeit der Sekretion der Drüsen in der 

 Daumenschwiele der Kana fusca vom R. cutaneus antehrachii 

 et manus lateralis. 



Vorläufige Mitteilung von A, Nussbaum. 

 Mit 2 Abbildungen. 

 Auf Veranlassung meines Vaters versuchte ich, den Sekretions- 

 nerven der Daumenschwiele der männlichen Rana fusca experimentell 

 festzustellen. Zu diesem Zwecke machte ich in der zweiten Märzhälfte 

 mehrere, verschieden variierte Versuche. 



