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(ep) 
TENTH ANNUAL REPORT. 
Historically, Vegetable Pathology has been studied for 
a long time; at least one work on “Maladies des Plantes” 
has a title page date of the early fifties. Of two German 
works in the nature of general treatises on this subject, still 
useful, the first editions were issued in the years 1874 and 
1880 respectively ; I refer to the handbooks of Sorauer and 
Frank, both of which have passed through subsequent edi- 
tions. The lamented Winter’s little work “Die durch Pilze 
Verursachten Krankheiten der Kultur-Gewachse,” belongs 
to about the same period (1878). These were followed by 
almost synchronous publication of the works by Prilleux, 
Hallier, Tubeuf, Berlese and Marchal in French, German 
and Italian respectively. Tubeuf’s book was soon trans- 
lated into English by Smith, and its appearance in that dress 
has been followed by the handbook of Massee and by the 
recent and most excellent work by H. Marshall Ward under 
the title of ““Disease in Plants.”’ 
There are journals, too, including the Zeitschrift fur 
Pflanzenkrankheiten, edited by Sorauer, now in its elev- 
enth volume, the Zweite Abteilung of the Centralblatt fur 
Bakteriologie und Parisitenkunde, now in its sixth volume. 
The Italians have the “Rivista di Patologia Vegetale,” of 
many years’ standing, edited by Berlese, and the Dutch the 
“Tidschrift over Planten Ziekten,” edited by Ritzema-Bos. 
In England society proceedings and journals have been the 
chief avenues of publication for work on plant diseases; 
while in the United States, aside from the Journal of My- 
cology instituted by Dr. Kellerman while in Kansas, now 
no longer published, the publications of the United States 
Department of Agriculture and the various Experiment 
Stations in the several states have been the chief agencies by 
which a large and valuable literature on plant diseases has 
been issued. 
Looking at the subject in this manner we are led to 
conclude that plant pathology has possessed a well arranged 
and systematic body of facts bearing upon the subject dur- 
ing a period of at least twenty years, and that this body of 
knowledge has been accessible for that length of time in 
