June i6.1923 Azotobacter Flora and Nitrogen Fixing Ability of Soils 923 
Table IX .—Type of growth, nitrogen fixed, and reaction of soils of Series III —Contd. 
Soil 
No. 
County. 
Type of film. 
Microscopic picture. 
Nitro¬ 
gen 
fixed. 
Azoto¬ 
bacter. 
Ph, 
colori¬ 
metric. 
Ph 
electro¬ 
metric. 
Mgm. 
2<2 . . 
253 ' 
Coffey . 
Pawnee 
254.. 
255 -• 
Greenwood . 
Wichita.... 
256 
257 
do 
do 
None. 
Typical Azoto¬ 
bacter. 
None. 
Typical Azoto¬ 
bacter. 
None. 
Nontypical. 
258.. 
259 -• 
260.. 
261.. 
262.. 
2 3 • • 
264.. 
271.. 
272.. 
273- • 
274.. 
_do. 
Logan.. 
Thomas. 
Pratt. 
. .do. 
Lyon. 
Hodgeman.. 
Woodson.... 
Pratt. 
_do. 
Finney. 
Typical Azoto¬ 
bacter. 
.... do. 
None. 
_do. 
....do. 
....do. 
Typical Azoto¬ 
bacter. 
None. 
Typical Azoto¬ 
bacter. 
None. 
Non typical. 
275 
do 
276.. 
277.. 
278.. 
279.. 
280.. 
Jackson. 
_do. 
Hodgeman.. 
....do. 
_do. 
Typical Azoto¬ 
bacter. 
None. 
_do. 
Nontypical. 
None. 
Typical Azoto¬ 
bacter. 
No Azotobacter . 
Typical Azoto¬ 
bacter. 
No Azotobacter. 
Typical Azoto¬ 
bacter. 
Azotobacter (?).. 
Typical Azoto¬ 
bacter 
....do. 
... .do. 
Azotobacter (?).. 
No Azotobacter. , 
....do. 
Azotobacter (?).. 
Typical Azoto¬ 
bacter. 
No Azotobacter.. 
Typical Azoto¬ 
bacter. 
No Azotobacter. , 
Typical Azoto¬ 
bacter. 
....do. 
No Azotobacter. . 
_do. 
Azotobacter (?).. 
No Azotobacter. . 
Typical Azoto¬ 
bacter. 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
5.6 
6.4 
5-4 
7.2 
6.2 
7.8 
7.6 
5-37 
6.25 
4.68 
7-79 
6.35 
8.13 
8.26 
6.5 
7.0 
5-9 
6.9 
5-5 
7-4 
6.49 
7.48 
5.81 
7-23 
4.93 
7*52 
5.6 
7-4 
6.5 
6.5 
7-4 
5-7 
5-4 
7*4 
6.4 
5-7 
5-41 
7.72 
6.42 
6.96 
8.06 
5-27 
5.10 
7*99 
6.81 
6.51 
43325—23-4 
