50 CHRISTISON—OBSERVATIONS ON 
3°40, 2°75. These figures probably represent a natural rise from 
extreme youth in the first two years to an equilibrium for the 
next four years, but there seems to have been a depression in 
the seventh year, followed by the death of two of the trees. 
The range is very high, as might be expected from the erratic 
history, and cannot be regarded as normal. Even in No. 70 it 
was ‘50 to 1°20, or taking’ the six steadiest years °75 to 1°20. 
OTHER SPECIES OF QUERCUS. 
QUERCUS CONFERTA. 
Annual ANNUAL INCREMENTS. 
Av. 
Ann. 
Total. ae 
No, in List. 
bt 
ist 
Decade.} 1998. | 1889. | 1890. | 1891. | 1892. | 1893. | 1894. | 1895. | 1896. | 1897. 
40 | 1°65 $ 1-05 | 1-20 | 1-35 | 1-25 | 1-70 $180 | -90 | 1-30 | -50 | -60 | 8:35) 1°39 | 51°80 
64| 1-70 1-30 | 1-75 | 2-05 | 1:50 | 1-75 $230 | 1-05 | 1-25 | 65 | -0 |10°65| 1°77 | 43°35 
55 | 157 $130 | 155 | 1-65 | 130} 1-70 $210} -75 | 1-25} 65 | -5 | 9-60] 1°60 | 39-05 
365 | 450 | 5°05 | 4-05 | 5-15 | 6-20 | 2:70 | 3-80 | 1:80 | “65 
The Hungary Oak is much more at home in the Botanic 
Garden than its native cousin, at least in early youth; indeed, 
with the exception of the Willow, it has proved the quickest 
growing species of all that were under observation. Unfortun- 
ately for my purposes, owing to a liberal pruning to promote 
upward growth, the results became unavailable for the last four 
years of the second decade, but in the first decade the rates of 
the three trees were 1°65, 1:70, and 1°57, and in the third quin- 
quennium with the one available year of the fourth they were 
1°39, 1:77, and 160, the respective girths attained being four feet 
four inches, three feet seven inches, and three feet three inches. 
Of the 44 recorded measurements not one fell to an inch, the 
lowest being 1:05, while two inches and upwards was reached 
five times, the highest being 2°30. The great and progressive 
depression caused by pruning has been such that, while in 1893 
the aggregate increase was 6°20, in 1897, four years afterwards, 
it was only ‘65, yet the trees look healthy and well clothed, with 
the exception of No. 40, which for a year or two before the 
pruning had looked rather scraggy. 
