54 CHRISTISON—ADDITIONAL OBSERVATIONS ON 
QUERCUS RUBRA. No. 61. 
Girth, March, 1887=0.131.76 mil. 
Trd. Trd. 
1886 || 1887-1889 | 1890 | 1890-1894/ 1895-1896 || 1897-1898 | 1899 | 1900-1906 
=o" PO Bb Fe t---O08 150 304 9 6} 123 90 
Rate, 4} me 30 15} Tk gor bar a 
Only 54 inches in girth when transplanted in the spring of 1887, 
this handsome young oak nearly perished from the operation. 
In 1887 the foliage was very scanty, and in 1888 it entirely 
disappeared in consequence of the death of the young twigs of 
the previous year. It is therefore remarkable that an increase 
in girth took place in both these years, though only of 2}. In 
1889 there was an unexpected, though but slight, improvement 
in the aspect of the tree, and in 1890 the recovery was suddenly 
completed. The girth-increase rose to 223, and the excellent rate 
of 30 was maintained for five years. Consequent on preparation 
for a second removal, the rate dropped for two years to 154. 
After transplantation it fell for two years to an average of 73, and 
in 1899 recovered to 123, a rate which it has not improved upon 
since. 
Well placed in prepared ground on the north side of the 
Arboretum, the tree, nev: less, has not yet recovered the well- 
clothed aspect and rapid rate of pirth-increase that characterised 
the period from 1890 to 1894. 
QUERCUS ILEX. No. 16. 
Girth, March, 1887=0.107.08 mil. 
Trd, 
1887-1893 1894 1894-1898 1899 1899-1905 1906 
Fetal, oe 113 3 36 113 79 11} 
Average,.. .. 16 3 1 3 iy 
This infant evergreen oak grew at the rate of 16 for seven 
years. Transplanted in 1894, the increase fell to 33 in that year 
and averaged 7 till 1898. A rise to 11} in 1899 seemed to show 
