TRANSPIRATION STUDIES. 25 
Experiment VII. 
Subject, plant No. 1; area, 52.95sq.cm. Atmometer No. 812, equivalent 
to 143 sq. cm. of free water surface. Situation, in the open, exposed to sun 
and wind, sun continuously bright all day. The wind movement was very 
slight up to 3 p. m., when the velocity increased markedly and continued 
high until the close of the experiment. 
TasLe 7.—Transpiration of potted plant No.1. Experiment VII. Date, April 23, 1911. 
ne T Temper- | Relative 
Time. Tr | E E ature | humidity. 
ORs p. ct. 
8b5imam.| ...... | ...... |... B 23 
10 05 a.m. { 0.0129 | 0.0300 0.430 79 a 
11 18 am. | .0192 0363 526 86 1y 
12 10 p.m. |  .0149 0405 368 88 18 
1 36 p.m 0198 0440 450 89 18 
2 22 p.m 0197 0435 452 90 17 
3 23 pm 0198 0472 419 88 17 
4 24 p.m 0139 0570 244 87 17 
5 24 p.m 0100 0475 210 86 17 
TIE a 
oer 
Log n ! i 
a * OF \ 
uN i ‘ 
F018 ae: 1 ‘ 
t ‘ ‘ \ 
1 \ - ‘ 
017 i On ‘ 
\ ’ ‘ 
u & ’ ‘ 
016 f .! , 
‘ ai ‘ 
015 —y * 
My L 
014 és ; en 
5 ay 
018 oak eae . 
: 
012 . 
\ 
ou 55 « % 
\ 
010 50 == 
Te 1 
009 45) EY Beers \ 
e ‘ ty ‘ 
008 40 Hy x \ 
" ‘ : 
W7 235 4 1 
‘ ‘ 
30 ! 
006 _ 
eee Nt 
005] .05 | .25 2s set Se : 
pee get Oe aad 
}.004).04 | 20] zi ae vy 
- ‘ 
003.02 |.15 | Md 
\ 
ae 
002} .02 | .10 ‘ 
+001] .01 | .05 4 
Vv, A u ,! ij oy 7 Ty uw “. " Au i 
9 0 HW Ww 1 2 8 4 «56 6 
Fig. 11.—Graph for transpiration of potted plant No. 1. 
. Exp. VII. 
