10 trees transplanted with roots bare of soil. 313 inches. Six months 
later the former measured 421 inches in height, the latter 384J 
inches, an increase of 114J inches for those transplanted with roots 
in the block of soil from the nursery, but only 71J inches for the 
trees transplanted with roots bare of soil. At the end of a year the 
former had increased in height 252J inches and the latter 226 inches, 
an 11.7 per cent greater gain for the trees transplanted with their 
roots incased in soil. 
At 18 months from transplanting, although three trees of each 
group were yielding nothing, the remaining seven trees of those set 
with clods were producing 352 drupes, as compared with 115 drupes 
from the seven check trees, the first yield from the trees set with 
soil-incased roots being three times as great as that from the trees 
set with bare roots. 
PLANTING XO. 3. 
Balled v. bare roots for transplanting. — To test the two methods 
on a larger scale. 321 trees of San Ramon coffee from seeds planted 
in February. 1913. were set in 34 rows. August 10-11, 1914. To 
make the conditions of the experiment uniform alternate rows were 
used to form the two groups, group 1 consisting of trees removed 
from the nursery with balled roots and unpruned leaves, and group 
2 of trees with bare roots and half of the foliage removed. The 
latter were carried from the nursery to the field in dampened sacks 
to prevent wilting. Rain soon followed the transplanting, and con- 
ditions were very favorable. 
San Ramon is a coffee of a more dwarfed and stocky habit of 
growth than the typical Porto Rican coffee. This varietal difference 
accounts for the much slower increase in height of San Ramon. The 
comparative differences, however, between the two groups of the ex- 
periment are very marked. 
Measurements of the height of the trees were made at regular 
intervals during the two years of the test, and the results are shown 
in the following table : 
Table II. — Tiro ucars' growth of San Ramon coffee. 
Average height per tree. 
Increase 
in 
Aug. 19, 
1914. 
Feb. 19. 
1915. 
Aug. IS, 
1915. 
Feb. 19, 
1916. 
Aug. 18, 
1916. 
average 
height in 
two years. 
Ci roup 1 
Inches. 
18.5 
19.9 
Inches. 
23.0 
21 2 
Inches. 
29.5 
25 
Inches. 
33.1 
5(8 :} 
Inches. Inches. 
41 6 23 1 
Group 2 
36 16 1 
Difference in favor of group 1 
- 1.4 
+ L 8 1 + 4. 5 J + 4. 8 
+ 5. 6 | ' + 7. 
