42 BOTANICAL GAZETTE [SEPTEMBER 
clover. Considering the results of the writer’s analyses, together 
with the other experimental work to which reference has been 
made, it would seem worth while to test sulphur as a fertilizer 
throughout the Atlantic coast region. 
_The samples of table IV were taken in cultivated fields near 
Miami, Oklahoma, two of the samples from one field and two from 
another. Nothing is known as to the previous treatment of the soils 
from which the samples came, or it might be possible to answer 
some questions which arise from a study of the data, such as the 
reason for the much greater phosphorus content of samples 21 
and 22 than of samples 19 and 20. 
TABLE IV 
SULPHUR, PHOSPHORUS, AND ORGANIC MATTER CONTENT OF CERTAIN SOILS NEAR 
Miami, OKLAHOMA 
Sample Depth got ang Lb. per acre ft Ri . Lb. per acre |Ignition value 
1 Surface 0.0202 404 0.0107 ‘274 4.340 
On od Subsoil 0.0287 574 0.008 I 7.764 
Py geen a ae Surface 0.0278 556 0.0587 1174 6.710 
BOP a, Subsoil 0.0136 272 0.0543 1086 5.290 
Average surface soil...| 0.0240 480 0.0347 604 5.528 
Pets subsoils ...... 0.0211 422 0.0315 630 6.527 
aan ai s not certain that subsoil 20 cond 22 go > with hol 2 19 aude 2r ‘teapunthvals: “ek were aang 
Table V contains the results of the analyses of certain soils 
of the central states. Samples 3 and 4 were taken in an alfalfa 
field; samples 5 and 6 in an oat field. The alfalfa field had been 
manured with one and one-half tons of cow manure per acre in 
1918. ‘The oat field had received in the same year an application of 
two tons per acre of cow manure. Both fields had been fertilized 
with gypsum in 1920. Samples 7, 8, 9, and ro were all taken in 
one field of seven acres, which had been in grass for many years. 
This field was put in corn in 1920, producing only a fair crop. In 
the fall of 1920 it was put in alfalfa. Sample 33 is a composite 
sample taken in a clover field near Paris, Illinois. Trouble was 
being experienced in growing clover on part of the field. It was 
thought that this might be due to the low sulphur content of this 
part of the field, but soil analysis indicated that such was not the 
