926 
Journal of Agricultural Research 
Vol. XXIV, No. II 
Tabi,]^ XI .—Type of growth^ nitrogen fixed, and reaction of soils from different States, 
Series IV 
Sftil 
No. 
State. 
Ivimed. 
Type of film. 
Microscopic picture. 
Nitro¬ 
gen 
fixed. 
Azoto¬ 
bacter. 
Ph 
colori¬ 
metric. 
Ph 
electro¬ 
metric. 
Mgm. 
301 
Michigan... 
0 
None. 
No Azotobac- 
4.2 
— 
5-9 
5-76 
ter. 
302 
.do. 
0 
Typical Azo- 
Typical Azo- 
7-1 
+ 
5-6 
6.64 
tobacter. 
tobacter. 
303 
.do. 
0 
None. 
No Azotobac- 
_ 
7-4 
7-38 
ter. 
O s 
304 
.do. 
0 
Typical Azo- 
Typical Azo- 
11.4 
+ 
6.3 
5'73 
tobacter. 
tobacter. 
305 
.do. 
0 
None. 
No Azotobac- 
4.8 
_ 
5-9 
569 
ter. 
306 
California. . 
0 
Nontypical... 
Typical Azo- 
8.1 
+ 
6.1 
5.61 
tobacter. 
307 
.do. 
0 
None. 
No Azotobac- 
6.3 
_ 
5-9 
5-49 
ter. 
308 
.do. 
0 
.do. 
Typical Azo- 
5-6 
— 
6.3 
5.81 
tobacter.^i 
309 
.do. 
0 
Typical Azo- 
.do. 
10.8 
+ 
7.8 
8.14 
tobacter. 
■^10 
. do . . 
0 
None . 
.do. 
4 - 
6.3 
7.08 
311 
Ohio. 
+ 
.do. 
No Azotobac- 
j • ^ 
0.3 
6.6 
7.01 
ter. 
^12 
.do. 
4 - 
.do. 
.do. 
3 • 6 
_ 
7.0 
7 . 
.do. 
4 - 
.do. 
.do. 
0 • ^ 
4.7 
_ 
4.8 
/ 00 
214 
.do. 
0 
.do. 
.do. 
4.8 
. 0 
0 D 
6.03 
211; 
.do. 
0 
.do. 
.do. 
A. 3 
D • y 
K . 0 
6.07 
0 D 
316 
North Caro¬ 
0 
.do. 
.do. 
4-5 
0 • y 
4.6 
. 00 
lina. 
^17 
.do. 
4 - 
.do. 
.do. 
6.0 
6.4 
6.78 
O s 
^18 
.do.... 
I 
4 - 
.do. 
.do. 
t;. 0 
. if 
< .0 
6.01 
0 * 
319 
New Jersey. 
1 
+ 
.do. 
Azotobacter (?) 
5-3 
— 
j • y 
6.8 
6.71 
320 
.do. 
0 
.do. 
Azotobacter 
4.8 
_ 
4-9 
4.80 
present. 
‘t 
321 
.do. 
4 - 
.do. 
Azotobacter (?) 
6.0 
_ 
6.4 
vr ♦ 
6. K2 
322 
..... do. 
1 
+ 
.do. 
Azotobacter 
4.4 
_ 
7.0 
6-93 
present. 
323 
.do. 
0 
.do. 
No Azotobac¬ 
4.4 
— 
4.9 
4.90 
ter. 
324 
Iowa. 
0 
Typical Azo- 
Typical Azo¬ 
II .6 
+ 
7.0 
7.II 
tobacter. 
tobacter. 
325 
.do. 
0 
None. 
No Azotobac¬ 
4.0 
- 
4.9 
4.78 
ter. 
326 
.do. 
0 
.do. 
.do. 
4.8 
■ - 
4.8 
4.83 
327 
.do. 
0 
Typical Azo- 
Typical Azo- 
6.5 
4.9 
4.93 
tobacter.® 
tobacter.o 
328 
.do. 
0 
None. 
No Azotobac¬ 
4 . 
_ 
5-3 
K.SS 
ter. 
329 
New York.. 
+ 
Typical Azo- 
Typical Azo¬ 
7-5 
+ 
7.2 
7.20 
tobacter. 
tobacter. 
330 
.do. 
+ 
None. 
.do.®. 
5 - 5 
+ 
7.0 
6.84 
331 
.do. 
+ 
Nontypical... 
6.6 
+ 
6.9 
6.79 
332 
-f 
None. 
Azotobacter (?) 
6.5 
— 
6.5 
6.23 
333 
.do. 
0 
.do. 
.do. (?).... 
5-7 
— 
5-2 
5*47 
334 
Arkansas.... 
0 
.do. 
.do. (?).■... 
7.8 
+ 
7.0 
6.96 
335 
0 
.do. 
.do. (?).... 
5-4 
— 
4.9 
5-05 
336 
.do. 
0 
.do. 
.do. (?).... 
5-0 
— 
5-5 
5.58 
337 
Oregon. . . . 
0 
No Azotobac¬ 
2.7 
— 
5-2 
5-27 
ter. 
338 
.do. 
0 
.do. 
.do. 
_ 
5-4 
. 30 
0 0 
0 oy 
3^0 
.do. 
0 
.do. 
.do. 
_ 
K.O 
. 24 
340 
.do. 
0 
.do. 
0 0 
3-1 
— 
S-6 
S -93 
ft One sample only. 
