THE GIRTH-INCREASE OF DECIDUOUS TREES. 51 
Girthing 2 feet in 1899, and with a rate of 31 for the next three 
years, transplantation reduced the increase in 1902 to 9; and, 
although the tree looked perfectly healthy and vigorous for the 
four years to 1905, the rate was only 133. In 1906 it rose to 16, 
but even this seems quite low, as it would be difficult to find a 
better clothed or healthier-looking tree of the kind, and it is not 
yet old, 
PRUNUS AVIUM. No. 18, 
Girth, March, 1887=0.116 mil. 
Trad. ah. 
1887-1894 1894 1895 1896~1899 1900-1904 1905 
Total, e os 1584 15} 0 864 1594 _ 
Average, .. - 20 aie e 214 32 —_ 
Only 44 inches in girth when first measured in 1887, this cherry 
stood in the south border of the Arboretum till 1894, with a rate 
of 20 mil. After transplantation in 1895 there was no increase 
for that year, but next year it at once regained the old rate and 
has improved since, so that in the period 1900-04 it had risen to 
32 mil.—a remarkable record of rapid recovery. In 1905 the tree 
was again transplanted, but failed and was cut down. 
PRUNUS AVIUM. No. 22. 
Girth, March, 1887=0.165.97 mil. 
Trd 
1887-1891 | 1831 1892 | 1893 1893-1901 1902-1906 
Total,.. ef GBS | My 33 20} 270 56 
Average, .. 324 : 30 11} 
A companion of the last and slightly larger—6} inches in girth 
—its rate before transplantation—32}—-was considerably higher 
than that of No. 18. Like it, the recovery took place after a single 
year of great depression. The rate, however, for the next 9 years 
was rather lower—30° —than before transplantation, although the 
tree seemed healthy. In 1902 it looked sickly and continues to 
do so, the rate from then till 1906, or for five years, being also 
