SUNIER: Marine fish-ponds of Batavia. 181 
For the purpose of drawing conclusions, however, these figures would 
also have to be arranged according to those peculiarities of the places of 
observation which may affect the temperature of the water; such as e.g. the 
depth of the pond, absence or presence of shade, algal growth, absence or 
presence of larger aquatic plants etc. etc.. For this purpose however the 
materials are too scant, which is due to the fact that there was no reason 
for me to make special temperature observations as such. 
The table, however, proves that in 162 cases the temperatures observed 
between 8.30 a.m. and 1.30 p.m, in the months of March to July and 
September to November 1918, and further in April and July 1919, ranged 
ligrades (degrees Celsius). 
19 
11-11.14 11.15-11.29 | 11.30-11.44 |11.45-11.59) 12M-12.14 |12.15-12.29/12.30-12.44 |12.45-12.59 1-1.14 1.15-1.30 
m. a.m. a.m. a.m. amp p.m. p.m. p.m. p.m. p.m. 
EEE ——_ 
32.0; 32.0) 325 
33.9 31.1 34.9; 35.3; 38.7 
31.7 31.3 30.2 
31.7;32.7| 34. 31.1 
35.1; 37.1 
30.2 
28.9 | 
29.2 ; 30.2 31.1 | 8 
29.2; 29.3 | | 
31.3 
LUEUR ES | | 
29.9; 30.1 | | | 
32,7 | 36.1 | 
| | 312 318 320 E20 NZ an 
31.4 32.2 | 
29.2 
15 I11’18 
19 111’18 
3 IV ’18 
16 IV ’18 
Zaft SY! ALS} 
14 V’18 
28 V’18 
15 VI”18 
Zi WS 
2 VIT’18 
16 VII ’18 
25 VI1’18 
30 VII718 
6 IX 18 
24 IX ’18 
SERIE 
28 X ’18 
18 X1’18 
17 IV ’19 
2 VII719 
