LEAF TEMPERATURE. 
Following is an example of the calculation for one determination. 
TABLE 22.—Temperature readings for the determination of leaf-temperature. 
READINGS FOR LEAP-TEMPERATURE, EQUATION 3. 
Calorimeter C. Calorimeter 7. | oie 
ir 
: temperature. 
Time. Temperature. Time. ‘Temperature. 
| 
{ 
ba OF an oe 
10> 59" a.m. 18.58 106 50.5™4.m. 18.32 
lL 1) a.m, 18.58 WW 10.5 am. 18.32 
Open-d for 
1 min. 
11h 12™ a.m. 17.58 11 12.5 a.m. 18.32 
11 30 a.m. 18.58 11 30.5 a.m. 18.32 
12 22 p.m. 18.70 12 22.5 p.m. 18.46 
12 23 p.m. 18.70 12 23.5 p.m. 18.46 ee 
12 24 p.m. 18.70 12 24.5 p.m. 18.46 it 
12 25 p.m. 18.70 12 25.5 p.m. 18.46 19.0 
Leaves put in. 
12h 26m p.m. | 18.90 12 27. p.m. 18.46 
12 26.5p.m. 19.10 12 28.5 p.m. 18.46 
12 28 p.m. 19.16 12 29.5 p.m. 18.46 
12 29 p.m. 19.19 12 30.5 p.m. 18.46 
12 30 p.m 19.20 12 31.5 p.m. 18.46 
12 31 p.m 19.20 12 32.5 p.m. 18.46 
12 32 p.m 19.20 12 33.5 p.m. 18,46 i 
12 33 p.m 19.20 12 34.5 p.m. 18.46 ' 
12 34 pm 19.20 12 35.5 p.m. 18.46 
12 35 p.m 19.20 12 36.5 p.m. 18.46 
12 37 pm 19.20 12 37.5 p.m. 18.46 kilo’ 
12 40 p.m 19.20 12 40.5 p.m. 18.46 syst 
12 50 p.m 19.18 12 50.5 p.m. 18.47 19.0 
READINGS FOR SPECIFIC HEAT OF LEAVES, EQUATION 2. 
2-6. eo 
1h 18™ p.m. 15.13 1 18.5™ p.m. 15.10 sea 
1 19 p.m. 15.13 1 19.5 p.m. 15.10 sae 
1 20 p.m. 15.13 1 20.5 p.m. 15.10 sae 
1 22 p.m. 15.18 1 22.5 p.m. 15.10 17.7 
Turpentine B 
put in. 
15 24" p.m. 21.60 1 24.5 p.m. 15.10 bisies 
1 25 p.m. 21.60 1 25.5 p.m. 15.10 shin 
1 26 p.m. 21.60 1 26.5 p.m. 15.10 17.7 
1 40 p.m. 21.55 1 40.5 p.m. 15.15 sting 
1 57 p.m. 21.35 1 57.5 p.m 15.20 18.8 
Readings for leaf-temperature determination (equation 3). 
Weight of calorimeter C, stirrer, thermometer, etc 
Weight of C, ete., plus turpentine A 
.. Weight A 
Weight C plus A plus leaves 
.”. Weight of leaves 
Temperature Ta 
Temperature T'c.... 
Temperature of air 
Weight C, plus A, plus leaves, plus turpentine B 
.. Weight B 
Readings for specific heat of leaves (equation 2). 
Temperature Ta......... 
Temperature 7'c.... 
Temperature Tb............ 
Temperature of air... 
141.74 
158.48 gm. 
14.51 
15.30° 
21.60° 
28 84° 
17.7° 
55 
