1905) | LIVINGSTON—TRANSPIRATION AND GROWTH 187 
received fertilizers were mixed with the latter, moistened, and 
allowed to stand several weeks with frequent stirring. The aerated 
soil was treated in the same way. At the end of this time lime was 
added to certain of the samples and the seeds were then planted. 
The proportions of fertilizers added are stated under “treatment” 
in the following table. a 2 
Where more than one ee ur ute y 
i s 107 A 
fertilizer was uscd, “as ‘“” © woe P 
each was in the same 
proportion as when 
used alone. The 
amount of lime added is given in the third column. Five baskets of 
six plants each were used for each treatment. The experiment lasted 
from November 19 to December 8, 1904. The data are given in 
the following table. Only transpiration and weight are given. The 
cultures are arranged in order of transpiration figures. 
cs) 
w 
- 
&| 
» 
é 
= 
& 
7 
FIG. 10 
DaTA FoR SERIES VII 
T P.pim, lime| weight of | spiration 
p.m. 1 
reatment Culture no. added oo Ww ml T) 
AOE SSE ae On ee age 
Cecil clay good added to WO ic eas I 7-30 313-8 
10 per cent. Cecil clay poor, aerated..... 2 none 6.95 316.5 
aNO3. 127 p.p.m....... pea eee 3 7-85 | 324-2 
co A ear Syne aie cern 4 none 7-50 337-5 
MOePOg)s 77D. P.M. ....2..5, 5.66. 5 7-50%| 348.41° 
og ig ae ge Cape aR 6 3000 8.35 | 351-1 
MUM.” tO00 p. Hi Ik. ss. 6565s 7 980 1° 383.7 
K,SO,. I30p.p.m... a ee eee ee 8 2000 8.35 356.1 
NaNO, +K,SO,+Ca,(PO,);........-.. 9 3 9-05 | 361.3 
Cecil clay POC, Vattraly ss. 5 ee 10 none 7-75 367.0 
KNO,. ae On be GER SED SMa SR ce II 8.65 368.0 
WAND EDO. oe ccscc ss 0. 12 3000 9-10 372-9 
The curves are shown in fig. 10. That of transpiration is practi- 
cally a Straight line and is nearly horizontal. The weight curve varies 
on both sides of that of transpiration, leaving the latter as approx!- 
mately the mean of the points of the former. No marked improve- 
ment of the soil by any of the treatments used is to be made out. 
All variations here are comparatively very slight. 
*° Only 29 plants; calculated numbers for 30 plants are: Wt, 7.80; T, 349-2: 
