406 First European Journey 



edition of his ' Pflanzenkrankheiten ' was his ' testament.' His 

 whole soul," Smith observed, " is wrapped up in getting this last 

 work well done. He brought me a good review of the first volume 

 of my book which he had just printed in his ' Zeitschrift.' " 



Dr. O. Uhlworm was " equally friendly " and Smith's visit with 

 him led to a dinner invitation, at which occasion the American 

 met Dr. Friedrich Ldffler. He was in Berlin to attend a meeting 

 of the Imperial Board of Health, and Smith and he talked of 

 Koch's Institut fiir Infektionskrankheiten. Loffler told stories of 

 his student days in Berlin, invited Smith to call on him at Greifs- 

 wald, inquired of his work, and accepted with pleasure the promise 

 of a gift of Bacteria in Relation to Plant Diseases. Smith liked his 

 familiarity with literature. 



Soon thereafter, Dr. Rudolph Aderhold, director of the Biolo- 

 gische Anstalt of the Imperial Board of Health at Dahlem, enter- 

 tained with a dinner in Smith's honor. Berlin had early appealed 

 to Smith as " the most interesting city of [his] acquaintance." He 

 enjoyed its cleanliness, its buildings, parks, gardens, and forests 

 of pine, birch, and beech. On a walk through Grunewalde with 

 Dr. Aderhold and his son Hans, Smith had been told to visit the 

 much older forests at Eberswalde. This he had done and while 

 there tried to call on Dr. Alfred MoUer. Later a day had been 

 spent at Liibbenau, a small village on the edge of the Ober Spree- 

 wald and in the midst of a famous trucking region, to study 

 cucumber diseases. But no bacterial diseases or any other maladies 

 of consequence were found. So, after visits to several new points 

 of interest around Berlin including forests of pine, oak, birch, 

 and various other tree species. Smith centered his attention on the 

 work of the Biologische Anstalt and Koch's Institut. Dr. Koch 

 was away from Berlin in the heart of Africa on Victoria Nyanza 

 studying with half a dozen assistants " the terrible sleeping sick- 

 ness." But Dr. Aderhold and Smith became close friends, and 

 later the American plant pathologist met and spent about half 

 an hour with Dr. Gaffky, director of the Institut. 



At the dinner in Smith's honor was Dr. Otto Appel who was 

 studying among other subjects Fusarium in all of its forms and 

 had about seventy sorts under cultivation in Erlenmeyer flasks on 

 strips of filter-paper soaked in synthetic media. He promised Smith 

 cultures of his Bacillus pbytopJothorus and photographs of the 



