TRANSPIRATION STUDIES. 
33 
* Taste 13.—Transpiration of a branch in leaf (h) of an adult tree. Experiment XIII. 
Date, September 16, 1912. 
, Dew-point. Temperature. | Relative humidity. 
Time. T E z 
Bell-jar.| Air. |Bell-jar.| Air. | Bell-jar. Air. 
\ F eS SC; oF ba) ne p.ct. 
6 32™ a.m. . —3. —3.0 abe ses ae 
7 42 am,|| 900521 | 0.0245 | 0212) 9's | —9'0 80 78 15 i6 
7 55 a.m. -2.0 | —2.0 78 78 16 15 
345 am, ‘00770 " 3 =19 86 83 12 id 
8 55 a.m.) —1.0 | -1.0 83 83 4 1 
10 00 a.m.) 00692 0e10 109 aa ~3.0 95 93 10 9 
10 10 a.m. 2 -3.0 | ~3.0 93 93 9 9 
10 10 en] 00402 0578 089 { 239 Seo ae A : 4 
11 25 a.m. , 4.0 | ~4.0 | 93 95 8 8 
11 25 a.m.) opens 0608 a eee a ee oe a 98 7 7 
12 35 p.m.) { -40 | 4.0 98 98 7 7 
1 39 et ooanS 0612 007 3.8 | 6:5 | 103 100 9 70) 
1 50 p.m.) ‘ 6.5 | —6.5 | 100 100 7@)| 7@) 
2 53 pmj| 00485 -0581 083 | oa —40 | 103 101 9 7 
3 05 p.m. ~4.0 | —4.0 | 101 101 70); 7 
4 05 Lae 0S e0aoG 079 {<8 =310 98 93 7 8 
413 p.m.) 3.0 | ~3.0 95 95 8 8 
520 parm.) -00097 O10 080 \ ooo 10 83 S4 lt 16 
five 
ee 
L 15 - ii 
L.10 4 ference, 2 
eee ae oer 
L 05 
L 00 
+.06 STE xe 
= ees 
ra ss 
+.05 armed Se 
3 7 
r. 04 oa = 
x 
a \ 
L038 2 ‘ 
a = See os 
x LE 
fates 
L.o1 
L090 
Pa BS 
}.007 yh) Tages 
\ 
id \ 
+.006 ie \ oP eit 
fe : a ay 
roe 
r.005 Sf oe 
‘ ft x 
+.004 ee Se 
ns 
L.008 i 
\ 
L002 x T 
4. 
L.001 caeeeey 
‘or W " " tt tt I u Vv 
6 a7 8 » 10 41 12 1 +2 3 4° 5 
Fic. 18.—-Graphs for transpiration of (4) a branch in leaf 
Exp. XIII. 
from an adult tree. 
