Vernon 



y m a n Kellogg 



a genuine contribution to sci- 

 entific knowledge of plant bi- 

 ology, albeit this knowledge 

 is so far only proved to be 

 attainable and to exist. It is 

 not yet exposed in its details 

 and may never be, however 

 unselfish be the owner of it. 

 For the going to oblivion of 

 scientific data of an extent and 

 value equivalent, I may esti- 

 mate roughly, to those now 

 issuing from any half dozen 

 experimental laboratories of 

 variation and heredity, is the 

 crying regret of all evolution 

 students acquainted with the 

 situation. The recently as- 

 sumed relations of Mr. Bur- 

 bank to the Carnegie Insti- 

 tution are our present chief 

 hope for at least a lessening 



Hybrid Walnut ' Par- 

 adox," Juglans regia and 

 /. Californica. Each One 

 Year Old, Same Parents 

 AND Same Nurture. One 

 500 Size of Other. 



of this loss. 



93 



