390 Report OF THE HoRTICULTURIST OF THE 
By consulting the above table it is seen that Brighton and 
Wyoming when pollinated with the self-sterile variety, Aminia, 
were practically sterile and gave no better results than are ob- 
tained when they are self-pollinated. Black Eagle succeeded no 
better than Aminia as a fertilizer. It was tried on the self-sterile 
varieties, Barry and Eumelan. Brighton was not more effective 
in fertilizing the self-sterile sorts, Black Eagle, Eldorado, Her- 
bert, Salem, Aminia and Lindley than in fertilizing itself. 
Slightly better results were obtained when it was tried on Merri- 
mack and Wyoming, but nothing that would encourage the use of 
Brighton as a fertilizer for self-sterile sorts. Creveling, which is 
self-sterile, failed to fertilize Brighton. Eldorado, which is self- 
sterile, gave no results which would encourage its use as a fer- 
tilizer for self-sterile sorts, and the same is true of the other self- 
sterile varieties, Hercules, Herbert, Lindley, Merrimack, Salem 
and Wyoming. Occasionally the use of a self-sterile variety as a 
pollinizer for other self-sterile kinds would result in the develop- 
ment of a good cluster as happened when Brighton was pollinated 
with Merrimack and again with Herbert, but even in such cases 
failure was the rule rather than the exception. 
On the other hand, the use of self-fertile varieties as fertilizers 
for the self-sterile sorts generally was attended with good results, 
as may be seen by examining the records of such varieties as 
Catawba, Worden and Niagara and Station 125. When certain 
varieties which are not strongly self-fertile, were tried as fertilizers 
for self-sterile sorts they generally succeeded in about the same 
degree as they commonly do in fertilizing themselves. This point 
is illustrated in the record of the tests with Eaton, Nectar and 
Vergennes. 
IS FAILURE IN SETTING FRUIT USUALLY DUE TO IMPERFECT PISTILS 
OR TO IMPERFECT OR IMPOTENT POLLEN 4 
Tt is instructive to study the results of these investigations with 
reference to their bearing upon the question whether the failure 
to set fruit which has been observed among the self-sterile and the 
imperfectly self-fertile varieties may generally be attributed to 
weakness of the pistils or to imperfect or impotent pollen. In 
