646 Third European Journey 



For leadership in early study of peach yellows, most stimulating example 

 of dogged work upon a baffling problem, with prophetic assurance that 

 knowledge of tobacco mosaic and aster yellows was pertinent to the solu- 

 tion; for leadership in pioneer studies of bacterial plant pathogens, with 

 classic publications exacting models for all who followed; again with 

 prophetic vision of the boundless extent of this field ; for zealous devotion 

 in defense of truth ; for assembled contributions to knowledge of bacteria 

 in relation to disease in plants ; for epochal researches on crown gall ; for 

 sympathetic counsel to eager younger scientists, from far and near; for 

 thus exemplifying the Pasteurian characteristics: clear vision, instant action, 

 intuitive judgment, precise method, tireless endeavor, sympathetic patience, 

 self-sacrificing devotion in service through science; for these things we 

 delight to honor you: pioneer, prophet, exemplar, dean of our science. 



Dr. William H. Welch spoke next to Dr. Smith. " No one in 

 our day." he said, 



has done more to bring the two great divisions of pathology into close 

 relation to their mutual advantage. Your studies of plant tumors have 

 brought you into the field of onkology in its broadest aspect. Here you 

 take your place in national and international congresses and associations 

 devoted to medical research and here your work is recognized as of the 

 greatest interest and importance. While your name is associated especially 

 with the championship of the parasitic theory of the origin of tumors, 

 your studies of the mechanism of tumor formation, of problems of histo- 

 genesis, of formative stimuli and inhibitions of growth are scarcely of less 

 importance. We too on the medical side have learned to admire you as a 

 man inspired with the highest ideals of the searcher for truth, and devoted 

 to this search, with the heart, the methods and the loyalty of the ideal 

 man of science. 



Dr. Rand, Miss Hedges, Miss Brown, Miss McCuUoch, Miss 

 Bryan, Miss Elliott, and a former member, Miss Ames, were 

 present from Dr. Smith's laboratory. Dr. Rand presented " the 

 memento." ''' " What Robert Koch was to the early days of 

 human and animal bacteriology," he said, 



that and more have you meant to the bacteriology of plant diseases. Almost 

 single handed you saw it through those first years of speculation and 

 scepticism to its present broad and solid position among the sister sciences. 

 In your scientific work and in your influence you have made an indelible 

 impression not alone upon plant science or upon animal science, but upon 

 the whole field of experimental biology. And what is to me most vital 

 and reassuring, through it all you have never for a moment lost sight of 

 the humanities nor of the beautiful things of the mind and of the world 



Diary, Dec. 29, 1926. 



