336 The Principles of Fruit-growing. 
normal stigmas. Of three hundred and three flowers 
upon the dvver side, only three were still fresh and 
capable of fertilization. The effect of the water in 
retarding the development of the flowers was. strik- 
ingly illustrated. 
* oF OF OR OK KR RK OK OK OK 
“Although, as mentioned above, after the spray 
had been removed many flowers with perfect anthers 
and pistils remained capable, presumably, of self-pol- 
lination, only one fruit, bearing three seeds, was 
borne by the tree. This was produced about midway 
between that half more heavily wet down and _ that 
more nearly dry. The unsprayed tree produced a fair 
erop of normal fruit. 
“Two vines situated near each other were selected 
for an experiment. One was left untreated for a 
check, the other was spraved for twelve nights and 
days. Since the Duchess came into blossom later 
than was anticipated, the sprayed vine was under 
treatment a week before the check began to bloom. 
Unavoidably the spray was discontinued before either 
of the vines was out of blossom. It will, therefore, 
be seen that the twelve days’ treatment did not cover 
the entire period that the vines were in bloom. 
“The first apparent effect of the spray was to re- 
tard the opening of the grape blossoms four days, as 
compared with the blossoming of the cheek vine. 
This effeet was noticeable during the blossoming 
period, and the treated vine continued in blossom 
at least four days longer than the cheek. Retarding 
the blossoming period, however, had no_ pereeptible 
