June i6,19.3 Azotobacter Flora and Nitrogen Fixing Ability of Soils 927 
Tabi,e XI. Type of growth, nitrogen fixed, and reaction of soils from different States 
Series I V—Continu^d, 
Soil 
No. 
341 
342 
343 
344 
345 
346 
347 
348 
349 
350 
351 
352 
353 
354 
355 
356 
357 
358 
359 
360 
361 
362 
363 
364 
365 
366 
367 
368 
369 
370 
371 
372 
373 
374 
375 
376 
377 
378 
379 
380 
381 
382 
383 
State. 
Oregon.. 
Alabama 
.do. . 
-do. . 
-- do. ., 
-do. . 
Mississippi 
.do 
do, 
.do. 
.....do. 
Illinois. 
.do. 
.do 
do, 
.do. 
.do. 
Indiana 
.do. 
Georgia. 
.do. 
.do. 
.do., 
.do.. 
Ohio.... 
.do. . 
.do 
.do, 
do. 
do. 
New Jersey. 
.do. 
.do. 
.do. 
..... do. 
.... do. 
North Caro¬ 
lina. 
-do. 
Limed. 
do 
_do__ 
_do. 
.... do. 
Massachu¬ 
setts. 
384 .do. 
® One sample only. 
O 
O 
O 
o 
+ 
+ 
o 
o 
o 
o 
+ 
o 
+ 
o 
+ 
o 
+ 
+ 
+ 
o 
o 
o 
+ 
+ 
+ 
+ 
o 
+ 
o 
+ 
o 
o 
o 
o 
o 
o 
+ 
+ 
Type of film. 
None.. 
-do. 
-do. 
-do. 
-do. 
-do. 
Typical Azo¬ 
tobacter. 
None. 
Typical Azo¬ 
tobacter. 
-do. 
-do. 
-do. 
None. 
Microscopic picture 
Typical Azo¬ 
tobacter. 
None. 
.do. 
.....do. 
.do. 
.do____ 
.do. 
.do. 
.do. 
.do. 
,....do. 
-do. 
Nontypical.., 
None. 
Nontypical... 
.do. 
None.. 
-do. 
_do. 
_do. 
-do. 
-do. 
_do. 
_do. 
Nontypicala 
None. 
do. 
do. 
do. 
Nontypical... 
_do. 
Azotobacter. . 
--do. 
-do. 
-do. 
Azotobacter (?) 
No Azotobac¬ 
ter. 
Typical Azo¬ 
tobacter. 
Azotobacter (?) 
Typical Azo¬ 
tobacter. 
-do. 
.do. 
.do. 
No Azotobac¬ 
ter. 
Typical Azo¬ 
tobacter. 
No Azotobac¬ 
ter. 
.do... 
.do. 
.do. 
.do. 
.do. 
.do. 
.do. 
,....do. 
-do. 
-do. 
Typical Azo¬ 
tobacter. 
No Azotobac¬ 
ter. 
Typical Azo¬ 
tobacter. 
... .do. 
Azotobacter 
present. 
No Azotobac¬ 
ter. 
-do. 
_do. 
_do. 
-do. 
-do. 
... .do. 
Typical Azo¬ 
tobacter.® 
No Azotobac¬ 
ter. 
_do. 
-do. 
....do. 
Azotobacter (?) 
•••■do.(?). 
Nitro¬ 
gen 
fixed. 
Azoto¬ 
bacter 
colori- 
■ metric 
Ph 
electro- 
. metric- 
Mgm, 
3-5 
5-5 
5.66 
I.O 
— 
4.6 
4.44 
1.6 
— 
5-9 
5.83 
0-3 
— 
4.8 
5.05 
3-0 
— 
5-9 
5.66 
1-7 
— 
5-9 
5.51 
8.0 
+ 
6.2 
6.17 
2-5 
— 
4.6 
4.21 
8.3 
+ 
6.6 
6.76 
8.6 
"f- 
6.2 
6.20 
9-5 
+ 
7-4 
7.74 
+ 
6.3 
7.20 
— 
4.8 
5.00 
+ 
5.8 
6.51 
4.6 
4.19 
4.7 
4.70 
— 
5-2 
5.73 
4.0 
— 
4-3 
3.80 
6.0 
— 
5.0 
4.93 
5.8 
— 
6.6 
6.69 
6.1 
— 
5.8 
6.05 
6.6 
— 
5.0 
-5.24 
6.6 
— 
6.1 
5.85 
5.8 
— 
4.8 
4.76 
6.2 
— 
6.2 
5 88 
6.8 
+ 
6.8 
6.84 
5-1 
— 
6.2 
6.18 
9.0 
+ 
7-1 
7.48 
10.4 
+ 
6.7 
7.05 
9.6 
+ 
7.0 
7.45 
5-3 
— 
4.8 
4.70 
5-1 
— 
5-7 
5.37 
4.7 
-— 
5.0 
4.22 
5*3 
— 
6.5 
6.44 
5-0 
— 
4.8 
5.12 
5-4 
— 
6.8 
6.86 
5‘2 
— 
5.0 
4.98 
5-4 
— 
4.8 
4.90 
5-4 
— 
4.4 
3.73 
5-2 
— 
5.0 
4.93 
4.4 
— 
5-4 
5.09 
5-8 
— 
5.0 
4.63 
4.0 
— 
6.5 
6.29 
4.3 
— 
6.6 
6.27 
