Studies on Crown CiAll of Plants 445 



and then accepted the chair of chnical gynecology at Johns 

 Hopkins University in the capacity of visiting gynecologist of the 

 Hospital. Smith cordially welcomed so eminent and able a con- 

 feree near him. June 20, 1911, he invited Dr. Cullen to examine 

 some of his materials. 



In working over sections of some fish, which I inoculated three years 

 ago with Bjcteriuni tuviejaciens from daisy, I have come across some 

 phenomena which I cannot interpret very well. I should like very much 

 to have you see some of the slides. If you are over here some afternoon, 

 can you not run in for an hour or two and look at them? My room is 301 

 West Wing, Department of Agriculture. . . . Some of the things I have 

 may be simple inflammation, but other phenomena seems to me a good 

 deal like a sarcoma. Of course, I am not saying on the strength of two 

 series of experiments that I produced what I have got, and when I first 

 concluded the experiments I was so much discouraged that I did not cut 

 any sections of them for a good while. If you come over here, I could 

 show you some very pretty slides of plant diseases. 



Again by a letter of October 17 Smith invited Cullen to examine 

 some slides and photomicrographs which were nearly finished. 

 The result was Dr. CuUen's letter to Secretary of Agriculture 

 Wilson. 



Secretary of Agriculture Wilson had become much interested 

 in Smith's researches. Honored and respected by all of his co- 

 workers, Dr. Albert F. Woods had left the Department the year 

 before to accept an appointment as Dean of the College of Agri- 

 culture of the University of Minnesota and director of the state's 

 agricultural experiment station. For some time Dr. Galloway's 

 health had not been strong. During the first half of the year 1911 

 he and Mrs. Galloway had taken a trip to Europe. Smith wrote 

 him of his visit to Minneapolis to attend the annual meeting of 

 the American Association for the Advancement of Science, of what 

 progress Dean and Director Woods had already made, of what 

 great and promising plans he had for the future, and that the 

 next meeting of the Association was to be held in Washington. 

 "About a month ago," he said, 



I went up to Buffalo at the request of the Academy of Medicine to give 

 a talk on crown-gall, showing some lantern slides. They paid my expenses. 

 The crown-gall bulletin [" Crown-Gall of Plants: Its Cause and Remedy "] 

 which has been under way so long was published at about that time. The 

 Secretary got interested in the matter and rushed it through. I have sent a 



