TABLE I — Continued 
162 
IOWA ACADEMY OF SCIENCE Voi.. XXVII, 1920 
1 Chlorine 
Pounds 
Per Acre 
4.1697 
1.7765 
0.4221 
3.6731 
0.2992 
0.3220 
1.6602 
1.5459 
4.6368 
1.7325 
0.6119 
2.2540 
0.7729 
1.0948 
0.4830 
4.5080 
0.6955 
1.8260 
0.8300 
2.6167 
0.4123 
S 
s 
1.0007 
;A 
« a 
m >4 
S - 
P-i 
LOLOO^'LOOO'O'^'-nOsO^OOO'O'OOO'.nii^ 
O ^ O K r-H* t-h‘ o ^ r-I rt T-H T-^‘ K o 
511.74 1 
1 zrii 
Nitrogen in Parts Per Million 
Pounds 
Per Acre 
.1018 
.1521 
.0351 
.1700 
.0461 
.0653 
.2112 
.1075 
.3027 
.1319 
.1050 
.4070 
.0654 
.0736 
.0467 
.5934 
.1110 
.2151 
.1540 
.1480 
.0396 
5.2790 1 
1 
0.899 
0.835 
1.108 
0.784 
1.267 
1.220 
0.887 
1.378 
0.717 
0.672 
2.095 
2.501 
0.814 
0.841 
1.080 
1.470 
1.650 
0.822 
1.270 
0.936 
0.724 
,48.175 1 
1.046 
Nitrites 
QNiOOO'^l^05>.vOmo<liJ-}T-igsvOOOO(MO'— 
oSoSSoSSoooooSo^^SooS 
00 
o 
00 
o 
Nitrates 
OOqOQOQOOOOOOOOQOQOOio 
OLooOsOOHO'-Hmix5miocvju-)o^oOOtO'^co 
11.765 . 1 
.255 
1 24.42 1 
Albuminoid 
Ammonia 
OOOOOOOt^OQOO^OOOOOOLOu-) 
lO'^OiOOf^OOOCMOfMOvO^fNTj-^O^OOvO 
CO rt; Tl; ro sO fO c\l LO CO rO rO lO vO fvj fO 
16.875 
1 34.99 1 
Free Am- 
monia 
OOOOQOOiorvJOOOOiJ^OOOOOOO 
cOrOcocO'^cOroLOCsjcomoO'^cO(M\Oio<OmvOcO 
1 18.717 1 
.407 
LO 
00 
Precipitation I 
Amount 
in Inches 
OiOOOcoOOOOOOOO'^’Oiot^.OOioOO 
lo tv. ON o vq cq a) c\t tv. cq co tv t-< lo vq i-< 
22.25 
Percentages of total Nitrogen 
Kind 
Totals 
Averages 1 
w 
Q 
. ilo'OCMCO 
tv On ^ ’-1 r-i c^t (N (M ro r-( CNt CO VO NO NO 
^ ^ ^ CO ^ NO tv CM (M 
'Kc^ E'o. & 
< < < < < 
tages of total Nitre 
