JGNORABIMUS ET RESTRINGAMUR. 107 



is still entangled in neuro-psychological views is shown 

 most clearly in the astonishing sentence which he has 

 thought good to append to his above-quoted, erroneous 

 assertion. " And what could we reply to the natura- 

 list if, before he could agree to the assumption of a 

 World-soul he required that we should show him 

 bedded in neuroglia and nourished by warm arterial 

 blood anywhere in the world a convolution of gan- 

 glionic centres co-extensive with the psychic capacity 

 of such a Soul " (!) 



In other respects we will not deny that Du Bois- 

 Reymond stands far nearer to our recent evolution- 

 theory than Virchow ; nay, that from year to year 

 he has always pronounced more and more emphati- 

 cally in favour of the theory of descent as the one 

 possible explanation of morphological phenomena ; 

 indeed, Du Bois-Eeymond has lately counted himself 

 as one of those naturalists who were convinced of 

 the truth of evolution even before Darwin ! Then 

 it is only to be wondered why so acute and gifted an 

 inquirer, who is certainly not lacking in scientific 

 ambition, left it to Charles Darwin to place the egg of 

 Columbus on the ring and to point out to biological 

 science a new method of unlimited capacity by giving 

 the theory of descent a definite and reliable basis ! 



It is clear from some remarks in his discourse bear- 

 ing the title "Darwin versus Galiani " (1876), that Du 



