300 Proceedings of Indiana Academy of Science 
MoLp CoUNTS EXPRESSED IN MILLIONS PER GRAM OF Dry Solu (Table 3). 
The results of mold counts given in Table 3 show that the mold 
counts of all plots averaged highest in March and April, gradually 
decreasing for May, June and July. The lowest count was for Septem- 
ber, growth being very low at that time. The averages for October 
and November about equalled the average count for June. 
The range in the counts for the different plots was wide, varying, 
for March, from .26 for the nitrogen plot, No. 11, to 1.77 for the N K 
plot, No. 8. 
However, the range was usually much less as the count in Sep- 
tember was from .11 for several plots to .40 for the N K plot, No. 8. 
This plot had a rather constant count, never falling below .37. This 
was much above the average for the July counts. The high average 
of plot 6 may have been due to an error since the April count was 3.79 
while in March the count was only .72 and in May .55. 
Mold counts for manure plots Nos. 2 and 3 were consistently above 
the averages for the monthly tests until October and November when 
the counts were much lower than the averages for these months. The 
cow manure plot, No. 3, had the higher count for March, April and 
May. But the horse manure plot, No. 2, had a little higher count for 
the remainder of the months, except in October when the failure of any 
growth to appear lowered the average count of Plot 2 noticeably below 
Blothe: 
Check Plot No. 9 had the low average count of .42 for the period. 
The N K Plot No. 8, had an average count of .64, which is .22 above 
this check plot. The P Plot, No. 10, had a count of .61, which is .19 
above the check. But Plot No. 11, having only nitrogen treatment, has 
an average count of .46 which is approximately equal to the count of 
the check plot. 
The potash and phosphorus treatments appeared to increase mold 
growth while nitrogen treatment had but slight effect. The average 
counts for check plots Nos. 1, 5 and 13 were considered equal to or 
higher than all the chemically treated plots. It would seem that either 
the source of error was very great, due perhaps to the small number 
of molds grown, or the various chemical treatments influenced mold 
growth but little. 
BACTERIA COUNTS EXPRESSED IN MILLIONS PER GRAM OF DRyY SOIL 
(Table 4). 
Bacteria counts of all plots averaged high for March, April, and 
October, medium for June and July, low for May and September with 
November lowest of all. 
The range of counts for March was from 2.61 for the N plot, No. 
11, to 19.60 for the cow manure plot, No. 3. But the range for July 
was only from 2.64 for the complete fertilizer plot, No. 4, to 5.48 for 
the horse manure plot, No. 2. 
The check plots Nos. 1, 5, 9, and 13 showed a lower average count 
for the period than the intervening treated plots. Check plot, No. 1, 
