1905] LIVINGSTON—TRANSPIRATION AND GROWTH 189 
DATA FOR SERIES IX 
P.p.m. Green | Total tran- 
Treatment Culture no. NaNO, weight of | spiration 
added tops (W?) (T) 
10 per cent. Leonardtown loam _ poor 
Re te POOU Se rT ee ae I 80 23.0 
Leonardiown Sean good, natural. ........ 2 none 7.4012} 352.812 
Eh he MA sae oe a oops ss ve eal a | 606'3 | 10.10 75-6 
NaN +K, ts. eee Cae curse tees ae | 3 II. 384.6 
K.SO,. 5 none 10.50 3098.6 
ae WOOO De: White Scners oie sowed 6 637 II.70 402.1 
Ca;(PO,)2. 77 p. p.m 7 382 10.40 406.114 
Ee ee eae er ae ee an 8 51 10.7014| 410 
NaNO,;+K,SO, 9 none 10.20 424.1 
ere RE he ee a 10 255 10.05 426.9 
4 nardtown loam pees aerated. .icccc2 II none 9-90 438.0 
NaNO. 127 p. p.m peers Ge 12 none 10.60 438.4 
The curves are given in fig. 12. With the exception of culture 2, 
and perhaps also of the last three cultures of the series, in which 
weight is low as com- se Oi 
pared to transpira- : 
tion, these agree with 
the last two series dis- 
cussed. See on ee ee Fe a ee ee 
Series X.—This sods 
consists of five different natural soils and a rich garden soil from the 
greenhouse. The experiment lasted thirty-four days, from November 
II to December 15, 1904. Weight of both leaves and tops as well 
as transpiration and leaf area were determined. A single basket of six — 
Plants was used for each soil. The data are given in the table. 
The arrangement is by transpiration figures. 7 
DaTA FoR SERIES X. 
1.00 
Baik | come | tae | weak | oe eS 
et | transpi- - a Ww 
-* no. ration area (A) —_ rec) A Wi 
ies eh lee 
Cecil clay 86 80.1 
We ioe eo, I 68.8 | 48.1 | 0.70] 0. 1.43 
Fakoma so 2 | 70.6| 48.8| 0.73| 0-73 | 0-86 | 82-1 
(conardtown loam poor.. 3 90.1 | 60.6} 0.97 | 1.21 | 1-49 | 74-5 
Bae beh cal go.r | 63.8] 1.02] 1-28 | 1-41 Si 
town loam J. 127. 8 | Fag | ESET tt 
Garden soil. . : Bood ze 7 ae thee 1.54 | 2-18 | 1.56 | 70-4 
*2 Only 29 plants; calculated numbers for 30 plants are: Wt, 7.65; T, 365-1. 
"$ KNO, in place of NaNO3. 
4 Only 29 plants; calculated numbers for 30 plants are: Wt, 11.10; T, 420.0. 
