cxii Journal of Comparative Neurology 



The orbital fissures of the gorilla and chimpanzee resemble the 

 same human fissures. 



In the lower apes the isle of Reil is exposed. This is also the 

 case in microcephalic idiots. We have not sufficient morphological 

 data to warrant the identification of the sylvian fissure of the apes 

 with the so-called sylvian fissure of the carnivores. 



The absence of a physiological activity does not necessarily in- 

 volve the absence of that portion of the brain in which the seat of the 

 function is usually located. That portion may have assumed some 

 other function. 



Since the power of speech is absent in many men without appar- 

 ent alteration in the " speech-centre," we may not derive morpho- 

 logical conclusions from the lack of speech in animals. For the ex- 

 act determination of the physiological homologies between the brain 

 of man and apes, further experimental work is desirable. 



In the cerebral topography the chimpanzee resembles man more 

 closely than does the orang. 



C. H. T. 



The International Journal of Microscopy and Natural History. 



We are glad to notice a marked improvement in this well-known 

 periodical which bids fair to become one of the most generally useful 

 of its class. In addition to the popular matter there is an increasing 

 number of technical papers of permanent value. The notes on histo- 

 logical methods are often valuable and the critiques and book notices 

 are full. It is noticeable that many Americans are among the con- 

 tributors. 



