Oi THi- Science of Plant Bacteriology 325 



December l^), IS97, Smith addressed a \'ery interesting letter of 

 thanks to Rudolph Adcrhold of Froskau, Germany, a letter which 

 evidently he regarded so valuable that he saved a written copy: 



I luvc to thank you for a very excellent review of my Bulletin No. 12 

 on Bji/llus soLiniUWDion in a recent number of Bot^iUiische'] Ze/i[ung']. 

 My paper on PseuJonionas campestris was printed in 2 Abt. of Cf«- 

 lralb[Litf'] f. Bak^teriologie'] etc. this year but inasmuch as it is in English 

 it is still for many German readers only " half published," just as German 

 papers arc for most American and Englishmen inaccessible on account of 

 the ditliculties of the language. On this account I would be very glad if 

 you could also find time to review this paper for Botlaniscbe} Zeit\_utjg']. 

 Perhaps you woukNike to do this in connection with a second paper on 

 the subject which has just gone to press, and a printed copy of which 

 I shall hope to send you early in January. This is a Farmers' Bulletin to be 

 issued by the U[nited] S[tates] Dep[artment] of Agric[ulture]. It is not 

 a digest of the preceding paper but deals principally with methods of 

 prevention and is based on discoveries made this summer while I was 

 studying the disease in the field. 



Your paper on Die Fusicladien tinsere Ohsth'dume has interested me and 

 I am now writing a review "^ of it for one of our journals. Along with 

 the paper on the cabbage disease, I venture to send you copies of several 

 other papers, bulletins, etc., in some of which you may, perhaps, be 

 interested. 



Many of Smith's foreign correspondents have been mentioned. 

 In chronological order, some of them were Oskar Brefeld of 

 Munich (1890-1892), F. v. Tavel of Zurick (1894-1895), H. 

 Klebahn of Hamburg (1895-), E. Koehne of Berlin (1895-), 

 Dr. John Bolle of the Imperial and Royal Agricultural and 

 Chemical Experiment Station in Gorz, Austro-Hungary (1894 or 

 1896-) C. A. J. A. Oudemans of Amsterdam, Netherlands 

 (1896-), W. Migula of Karlsruhe, Germany (1896-), Wladislaw 

 Rothert of Kazan, East Russia (1896-), Dr. A. N. Berlese of 

 Milan, Italy (1897-), and the number increased after this year. 

 It is likely that Smith received letters from other foreign sources. 

 In 1895 he started a " Ledger " containing the names of all his 

 correspondents, both in North America and abroad, and the 

 reprints sent to each. By the end of the century three volumes 

 were required to incorporate the data. Foreign scientists w^ith 

 whom he began to correspond in 1895 were: 



^^^ See, E. F. Smith, Perithecial stage of the apple-scab fungus, Amer. Nat. 29 

 (342): 583-584, June 1895; Fifty years of pathology, op. cit., 27 (in this Smith 

 spoke of Aderhold's work as between 1896 and 1905). 



