175 
It is apparent that perhaps the worst feature of this period was 
the extremely violent (84 miles per hour) warm wind following 
directly after the cold period. This should be borne in mind in 
connection with what will be said later regarding the complexity of 
conditions causing winter injury. 
In his report on injury due to the conditions in the winter of 
1919-20, Taylor says; ‘“‘ While the winter of two years ago had 
several days when the temperature was lower than ever before 
recorded here, the past winter was more continuously cold 
than any other for thirty years. The notes on the effects of the 
past winter are, therefore, a record not so much of what one un- 
precedented period of low temperature will do, but rather the 
cumulative effect of two exceptionally bad BS with only a 
single mild one intervening—that of 1918-1919. 
In his first report (for the winter of 1917-18) Taylor divides 
the winter injuries into four categories. 
I. Killed outright. 
II. Killed to the ground but making new growth. 
III. Severely winter-killed, but now making recovery. 
IV. Only a little winter-killed. 
For the sake of comparisons with the same species or varieties in 
our present list, we have cited Taylor’s findings wherever they 
apply, using the following symbols and adding the figures ’17-18, 
thus: 
ete 7-18 
Il = KG: 717-18 
III—SKR: 717-18 
Ve —— Wee eke: 
In his second report (for the winter of 1919-20) Taylor di- 
vides the winter injuries into three categories, as follows: 
. Winter-killed. 
II. Severely winter-killed, but recovering. 
III. Shghtly winter-killed. 
MH 
In a similar way we have inserted these verdicts in our present 
report, using the following symbols: 
1 Taylor, Norman. Effects of the winter of 1919-1920 on the woody 
plants in the Garden. Brooktyn Bor. Garp. Recorp 9: 121. 1920 
