180 TREUBIA VOL. II, 2—4. 
CHAPTER III. 
The Temperature of the water in the Batavia empangs. 
As when starting the investigation | generally determined the salinities | 
on the spot by the direct reading of the areometer and the thermometer, 
I have at my disposal a number of data concerning the temperature of the = 
fishpond water. The temperatures, which were all observed between 8.30 a. m. | 
and 1.30 p. m., have been arranged in the following table in the order of the 
days and hours when they were observed: 
Temperature 
a: ao 9-9.14 a.m. hen .9.30-9.44 a.m. | 9.45-9.59 a.m. | 10-1014 a.m. ee oar 
Wal RR TPE Loo | 
15 1718 | 20.0 30.0 
19 III 718 | 28.35 | 28.4; 28.9 20.4 31.1 
BIN AB 26.5; 26.6 27.4 27.4 DID 28.1 28.15 
16 IV 718 | 28,4 
Di IAS | 29.2 29.0 28.9; 29.0 30.4 31.1 
14 V ’18 28.6 27.8 29.9; 30.1 | 30.1 29.1 
23 WON | 28.8 28.0 29.7 30.7 29.7 32. 
Wis) WAL PIE | 125.9 202 26.0 26.6; 26.9; 27.1 28.2 28.2 
27 VI 718 24,1; 24.9 25.4 24.7 24.4; 25.4; 27.2 Dil) 26.9 
2 VII 718 
16 VII 718 26.7 | 26.4; 26.6; 26.7 |26.5; 26.7 28.8 27.3 28.6 29. 
25 VII ’18 28.0 
30 VII 718 27.5 27.7 27.3; 29.2/27.35\ 
OMS 28.5; 28.7; 29.8 30.0 29.7 
24 IX ’18 28.9; 29,3 30.2; | 
15 X 18 | | 31.7, 32.3 131,8; 33.532,25: 
DSS | | 28.5; 28.8 | 29.8; 30.2; 308] 29.1 29.5 
18 XI’18 | | 2017; 132.1 | 200-3204 310 30. 
17 IV ’19 | 29.3 28.9; 30.9 | 28.0; 28.2; 293| 29.0; 29.7 31.4 
2 VII ’19 | DI ea || OM 27.2 28.6 28.1 | 
| 
