492 Genetic Theory and Evolution 



Wright, 1950). It would also be seen that leading taxonomists in their 

 respective fields, like Petninkewitsch for spiders and scorpions (1952) 

 and Zimmcrmann (Insects of Hawaii, 1948, see 1:151 ff., 2:342 fiF,), 

 find facts which force them to consider seriously my point of view. 

 The same is true of the paleontologist Schindewolf (1950) in his re- 

 markable volume. Perhaps some day an objective appraisal of all this 

 will be made, together with a critical consideration of the failure of 

 Neo-Darwinism to explain evolution beyond the level of mixed inter- 

 breeding populations. 



