238 
LOCK : THE GROWTH 
Table XI,— contd. 
Date. 
No. 1. 
No. 2. 
Remarks. 
Height. 
Day. 
Night. 
Height. 
Day. 
Night. 
1903. 
July 12 
. 13 
14 
15 
17 
1 
,009 
070 
09 
145 
83 
35 
5- 8 
6- 8 
10-0 
20- 5 
16'3 
18- 5 
21- 4 
19- 8 
18-2 
747 
776 
8"i'. 
843 
873 
3- 6 
5-9 
100 
4- 3 
18-6 
16-5 
19-3 
18-5 
Fairly bright 
Dull ; rain 
Dull ; rain 
Variable 
Dull ; rain 
Variable 
In the case of No. 1 the average hourly growth during the 
day for the whole period was 6*27 mm. During the night 
(5.30 P.M. to 7.30 a.m.) it was 17-75 mm. or nearly three times 
as rapid. The most rapid growth on any day was 15*0 mm. 
per hour on June 28, rain having fallen steadily nearly all 
ay. The rate of growth during the following night was 
UV mm. per hour. The least growth in the day time was 
*5 mm. per hour recorded on July 4 and 9. Both days 
were rainless. The greatest growth at night was 23-0 mm. 
per hour and the least 13-9 per hour, which is more than 
twice the average hourly growth by day. 
or No. 2 the average hourly growth by day was 5*7 mm. 
“ d by ni?ht 14 5 **>., again approaching a ratio of 1: 3- 
©greatest growth by day was on June 28 being 12-4 mm. 
per hour; during the following night it was 12-2 mm. per 
, his being the only case in which the rate of growth 
y ay was observed to exceed that during the night. 
it * >erio< * ^ urin g which records were made it appears 
he 0386 of Dendrocalamus the ratio of the hourly 
f? day to *kat during the following night varied 
between one of eqnalit, and one of nearly 1: 8 ; the former 
the** e *? ptlonall y wet and dull day. At no time during 
all nnder consideration did the sun shine steadily 
all day long. 
