478 Second European Journey 



produced fifteen flowering healthy shoots the next year.^^ Sub- 

 sequently, O'Gara discovered a similar disease on Agropyron in 

 Utah and Hutchinson on wheat heads in Punjab in India. 



The Laboratory's scientific study of many of the plant diseases . 

 dealt with in the third volume of Bacteria in Relation to Plant 

 Diseases had been performed in Washington, and little or no 

 work on these by Smith was required in Europe. A few examples 

 were the corn studies including further work on Stewart's disease 

 of sweet corn, and the Grand Rapids tomato disease, wilt diseases 

 of tobacco, vascular diseases of banana, etc."* After returning to 

 America, he exchanged letters with A. Spieckermann of Munich 

 who, with Kotthoff, described (1914) their bacterial ring disease 

 of potato. But he did not go to Munich. In early November he 

 was in Vienna and by the middle of the month in Bologna and 

 Milan, preparing for visits to Genoa and San Remo and to sail 

 for the United States in the not distant future. He wanted speci- 

 mens or information about the oleander gall, the pine tumor of 

 southern France, and other things of value or interest in his work. 

 Although he regretted that he had not put over his sailing to a 

 later time, he made his scheduled reservation and returned home 

 on the same ship on which he had crossed, the Lapland. One 

 day out of New York he was asked to present a lecture, and he 

 sketched the material progress made by research in pathology 

 since the early work of Pasteur and Koch and the major technical 

 advancements in bacteriology since then. 



Dr. Smith, soon after his arrival from his second European 

 journey, married on February 21, 1914, Miss Ruth Warren at the 

 home of her uncle and aunt in Springfield, Massachusetts. She 

 was the daughter of Josephine Hopkins and Wilmot L. Warren, 

 and her father and her uncle, Edward F. Hayes, for many years 

 had been leading editorial writers for the Springfield Republican. 



'^^ Bacteria in relation to plant diseases, op. cit., 3: 160 n. 



°* Corn: Erwin F. Smith and Florence Hedges, Burrill's bacterial disease of broom 

 corn, Science, n. s., 21(535): 502-503, March 31, 1905. See also, Erwin F. Smith 

 and Charlotte Elliott, A bacterial disease of broomcorn and sorghum. Phytopathology 

 14(1): 48, Jan. 1924. 



Erwin F. Smith, Seed corn as a means of disseminating Bacterium stewarti. 

 Science, n. s., 30(763): 223-224, Aug. 13, 1909. 



Tomatoes: Erwin F. Smith, A new tomato disease of economic importance, Science, 

 n. s., 31(803): 794-796, May 20, 1910. 



Potatoes: Erwin F. Smith, Bacillus phytophthorus Appel, Science 31(802): 748- 

 749, May 13, 1910. Also, Phytopath. 2(5): 213-214, Oct. 1912. 



