354 REPORT OF THE HORTICULTURAL DEPARTMENT OF THE 
TaBLe I1V.—SHOWING RELATIVE DISTRIBUTION OF GRAPE SEEDS OF 
DIFFERENT S1zEs AS REGARDS Speciric GRAVITY. 
Sp. er. Small. Medium sized. Large. 
Per ct. Per ct Per ct. 
<1.00 21. 11 2. 
1.00 3. 
1.01 2. 1 
1.02 2. 2. 
1.03 Pas 1 
1.04 2. 1 
1.05 pe 3 8. 
1.06 on 5. 9. 
1.07 4. is 6. 
1.08 10. 13 lige 
1.09 9. 12 18. 
1.10 10. 18 él. 
ak 16. 19 6. 
a hea I 4, 6 
ipale ide 2 we 
1.14 it 
Lold 3. 
100. 100. 100. 
The distribution of the seeds of each of these sizes in per- 
centages of the total number of seeds in each size is shown in 
Table IV and graphically in Chart III. Although Charts II and 
III represent the same sample of seed, the appearance of the 
two charts is quite different. Chart III shows that almost the 
entire percentage of larger seed falls within the range in which 
germinations occur; that a less percentage of medium sized 
seeds falls within that range, and a still less percentage of small 
seeds. The number of poor seeds is obviously in inverse pro- 
portion to the number of good seeds. This chart brings out for- 
cibly the fact that a conventional separation of seeds by a salt 
solution without having previously separated the seeds into lots 
of different sizes is of itself a partial separation according to 
size; that is, the lighter separates consist predominantly of the 
smaller seeds, and the smaller the seeds the greater the propor- 
tion of them contained in the lighter separates. Inversely, the 
heavy separates contain a larger portion of large seeds than 
does the original sample and the larger the seeds the larger the 
proportion of them which is included. 
Charts II and III and their respective tables bring out anew 
the fact that the seeds of highest specific gravity absolutely are 
small seeds, and that the larger the seed, the less high does it 
range in specific gravity, though the average specific gravity of 
large seeds is greater than that of small seeds. This obser- 
vation is of general application. For instance, in the case of 
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