Lid 
qe 
XI, C, 1 
Brown and Heise: Carbon Dioxide Assimilation 
a9 
the experimental data are given in full, and the results are 
calculated on the basis of real assimilation for 50 square centi- 
meters of leaf and for one hour. 
The results of these three 
tables are summarized in Table 5 of the present paper, and 
plotted in fig. 1. The numbers from each table are plotted 
separately. 
Temperature, 
5 0 5 10 15 20 25 30 
z 
8 
sg 
i 4 able ace 
= 20 - 
* he 
it 
10 ir a asd Beak ae na 3 pai 
=] 
2 
E A 
Fic. 1. Relation of carbon dioxide assimilation and temperature at unit light intensity. 
TABLE 5.—Assimilation experiments at low and medium temperatures with 
unit intensity of light (Matthaei, Tables I-IV). 
Average 
COzassimi-} 
Table Experiment No. ap Beer By = tly prawn ak 
50 sq. cms. 
na We, and 1 hour. 
1912. oC, Grams. 
WF Soot aa ee Jan. 29 14.4 5| 0.00282 
Wide. cs ce eee a on Jan. 30 13.0 4} 0.00274 
bY See aa eer ee Vi ee Jan. 25 25.7 4! 0.00307 
With ee ee re Jan. 23 29.1 4} 0.00284 
Oh i se Feb. 1 33.1 2| 0.00285 
a a ie Feb. 8 5.5 3| 0.00285 . 
Ms a de io sk ask Scams Feb. 7 10.1 3| 0.00282 
Wee, eM avd cc ieGeh ide tike ge wl ees Feb. 6 10.2 3} 0,00268 
Is aes lig gio gee ed Feb. 11 14.0 2| 0.0026 
ME i eats ia cect eat i Feb. 5 14.2 3| 0.00348 
ew ae i gees og rs oS cee’ Feb. 10 25.0 3 0. 00827 
8 eee er Ome Mar. 1 —6.0 2) 0.00038 
eee gs os a Feb. 24 —8.6 3| 0.00093 
MAY gis eke is. gcd Feb. 17 —1.5 3| 0.00105 
pe 4s | ee ee ke ot OR ane eae Feb. 20 —1.0 3] 0.00143 
dt eae UE a a se Feb. 27 41 3} 0.00202 
MYT ks lnpsideet ess seekeralis ss Mar. 2 +2 3| 0.00242 
EVE a ae ein Feb. 13 +2.4 3| 0.0026 
ee oo ae ee ete Mar. 7 3.6 3} 0.00285 
yo SUBIR Speke ean sa SL aM Mar. 4 8.8 2} 0.00297 
Oia Cte te lS ee Mar. 7 9.1 3| 0.0029 
