194 BOTANICAL GAZETTE [mance 
west, and in two weeks the crop was practically ruined. Meas. 
time the two rows of bush limas were examined daily. About 
ten days after the first infection of the pole limas, mildewed pots 
were found upon the bush limas, but only at the north end ofthe 
WwW. 
N 
5. 
z. nd 
a 
- 
a 
c a oy x 
7 oe 
Girne 
c. ae a 
7 
s 
. 
s 
ics 
beans; B, couse # 
— A, A, points of primary artificial infection on pole beans; 
Fic. 5.— 
prevailing winds; C, C, points of secondary natural infection on bush beans. 
rows nearest to the source of infection. From this point tsp . 
rapidly southward until both rows were completely oe) ; 
The conclusion seems inevitable that not only do 
play an important part in the dissemination of fungous | 
but that the wind certainly does its share. ceasot 9 a 
How this particular fungus is propagated iro 
season is a question of great importance, but be 4 attentio# 
object of the present paper which is to cal se. patholag 
to the divers lines along which the vegetable p? inter 
obliged to direct his attention, and the importance _ 
which attaches to all observations relative to the diss : 
of fungous diseases. 
AGRICULTURAL EXPERIMENT STATION, 
w Haven, Conn. 
