30 
Research Bulletin No. 1 
Table 5. — Representing in percentages the fluctuation of spore 
septation of <t culture wrapped in black paper, groum in a 
room, temperature 20° to 27° C. } humidity )0 to -7.7 per cent. 
February 16 
RVhmarv 23 
\ I n rr»Vi 1 
* \ 1 c l M 11 1 
O-septate. 
Tube A 
5 
7 
6 
i > 
4 
8 
9 
r\ 
\>- 
12 
8 
10 
I ) 
' 
g 
Average 
7 
7 
1-septate. 
Tube A 
79 
82 
85 
D . 
78 
79 
87 
e 
85 
79 
75 
JJ 
70 
79 
82 
Average 
78 
80 
83 
2-septate. 
Tube A. .. 
14 
t 
8 
B 
9 
11 
2 
C 
2 
6 
9 
D. 
13 
11 
10 
Average 
10 
9 
8 
3-septate. 
Tube A 
2 
4 
1 
B 
9 
2 
1 
C 
1 
7 
6 
D 
10 
4 
2 
Average 
4 
3 
In these tables each figure represents the average of at least 
six counts. The cultures studied in this case were started with 
inoculum from a culture which had been started with a single, 
three-septate spore, five weeks old. and showed the following 
percentages of spore septation: 
0- septate (I per cent. 
1- septate 83 per cent. 
2- septate 9 per cent. 
3- septate '1 per cent. 
Graphs 1, 2. 3, and 4 are plots of the figures represented in 
Tables 2, 3, 4, and 5. The percentages are plotted on the ordi- 
nates and the number of weeks on the abscissae. In each g«; :ph. 
line A represents the cultures grown in the refrigerator, line B 
the cultures grown in the incubator, line C the cultures urown 
in the room, and line D the cultures wrapped in black paper and 
grown in the room. 
