42 DARWIN AND NATURAL SELECTION 



very great value to any person working at higher 

 biological problems, and we now proceed to ex- 

 emplify that fact by making some quotations from 

 it, premising that Professor Kellog, whether he 

 approves of them or not, is very fair in his repre- 

 sentation of all opinions expressed by persons 

 worthy of consideration in scientific studies. We 

 may profitably commence by considering in a 

 general way the kind of scientific opinion which 

 at present shows itself more or less antagonistic 

 to Darwinian views, before we deal particularly 

 with the more prominent opponents and their 

 opinions. " There has been," Professor Kellog 

 writes, " from the day of the close of the first 

 great battle to the present moment a steady and 

 culminating stream of scientific criticism of the 

 Darwinian selection theories. In the last few years 

 it has, as already mentioned in the preface and 

 introductory chapter of this book, reached such 

 proportions, such strength and extent, as to begin 

 to make itself apparent outside of strictly biological 

 and naturo-phflosophical circles. Such older biolo- 

 gists and natural philosophers as von Baer, von 

 Kolliker, Virchow, Nageli, Wigand and Hartmann, 

 and such other writings in the nineties and in the 

 present century as von Sachs, Eimer, Delage, 

 Haacke, Kassowitz, Cope, Haberlandt, Henslow, 

 Goette, Wolff, Driesch, Packard, Morgan, Jaeckel, 

 Steinmann, Korschinsky and de Vries are examples 

 which show the distinctly ponderable character 

 of the anti-Darwinian ranks. Perhaps these names 

 mean little to the general reader ; let me translate 

 them into the professors of zoology, of botany, 



