5O4 Report or THE HorticuLTURIST OF THE 
had developed into fruit. If no fruit, or none but abortive fruit 
developed, that fact was noted. Plate L illustrates a case of a 
variety which produced no fruit when self-pollinated. Plate LI, 
Figure 1, shows the results with a nearly self-sterile variety, while 
Plate LIT shows how perfectly the covered clusters may develop 
when the variety is self-fertile to a high degree, 
The degree of compactness of the uncovered clusters was also 
recorded in many cases, but unfortunately not in all. In the ease 
of vines located at the Station the yield of the vine was recorded. 
In a few instances, after the blossoms had been covered the vines 
appeared to be in an unsatisfactory condition for the test as mani- 
fested by abnormal unproductiveness, injury, weakness, disease, 
too rampant growth or some other disqualifying feature. The 
records of such vines, if presented at all, are not included in mak- 
ing the final estimate upon which the classification of the variety — 
as to its self-fertility is based. In some cases it has appeared 
doubtful whether the vine was in a proper condition for the test. 
When the final estimate is based on such tests it is marked as 
questionable. 
RECORD OF RESULTS. 
The results of the tests with each variety are set forth for each 
year and each locality in Table I. The number of clusters in- 
cluded in each test is stated and the kind of stamens is given ex- 
cept for a very few varieties with which no observations on this 
point have been made. For self-sterile varieties and for those in 
which the self-sterilized clusters were on the average too loose to 
be called marketable, the yield of the entire vine, or vines, as the 
case may be, is stated to show the degree of productiveness from 
uncovered clusters. In many cases where covered clusters have 
failed to fruit, or have fruited imperfectly, the same vine has 
given a fair, or even a good yield, from the uncovered clusters. 
This is accounted for by the fact that all of the vines ineluded in 
these experiments have been located where cross-pollination could 
