INFLUENCE OF ILLUMINATING GAS ON BACTERIA AND FUNGI 1 7 
Table Showing the Effect of Different Concentrations of Illuminating 
Gas on the Growth of Several Fungi 
Species 
Gas Cone. 
First Trial 
Second Trial 
Third Trial 
3d 6th 
Day Day 
9th 
Day 
i2th 
Dayl 
3d 
Day 
6th 
Day 
9th 
Day 
i2th 
Dayl 
3d 
Day 
6th 
Day 
9th 
Day 
i2th 
Dayl 
Endothia Penicillium Penicillium Penicillium Penicillium 
parasitica expansum roqueforti camemberti pinophilum 
1 
Air 
5% 
io% 
25% 
50% 
75% 
100% 
Air 
5% 
10% 
25% 
50% 
75% 
ioo% 
Air 
5% 
10% 
25% 
50% 
75% 
100% 
Air 
5% 
10% 
25% 
50% 
75% 
100% 
Air 
5% 
10% 
25% 
50% 
75% 
100% 
14 
10 
8 
4 
0 
8 
6 
4 
0 
28 
17 
8 
2 
0 
18 
8 
5 
2 
0 
24 
18 
II 
8 
0 
28 
19 
13 
5-5 
0 
25 
15 
II 
5 
0 
62 
44 
29 
3 
0 
37 
17 
9-5 
4 
0 
53 
32 
21 
14 
0 
43 
29 
22 
7-5 
0 
35 
21 
16 
7 
0 
912 
52 
40 
5 
0 
25 
13 
5 
0 
87 
49 
34 
20 
0 
58 
21 
0 
30 
24 
0 
912 
93' 
70 
33 
0 
38 
24 
16 
0 
902 
73 
56 
42 
0 
6.5 
7 
6.5 
4 
2 
2 
0 
II 
II 
II 
7-5 
4.5 
2 
0 
23 
18 
14 
7-5 
3 
I 
0 
16 
15 
15 
8.5 
3- 5 
3(?) 
0 
4- 5 
7-5 
7-5 
6 
3 
0 
24 
24 
21 
16 
II 
4-5 
0 
23 
24 
22 
16 
10 
6 
0 
61 
52 
49 
12 
4 
0 
33 
33 
31 
19 
7-5 
5 
0 
34 
35 
33 
23 
17 
8 
0 
41 
39 
36 
27 
21 
7 
0 
32 
32 
29 
24 
16 
9 
0 
85 
89 
81 
59 
23 
8 
0 
50 
51 
46 
27 
12 
7 
0 
65 
67 
60 
39 
26 
13 
0 
56 
53 
51 
42 
36 
22 
0 
43 
44 
41 
30 
23 
18 
0 
902 
902 
912 
902 
73 
37 
0 
68 
67 
63 
43 
29 
22 
0 
88 
90 
83 
65 
48 
39 
0 
9-5 
10 
8.5 
8 
4 
4(?) 
0 
II 
12 
10 
II 
4(?) 
4 
0 
25 
23 
23 
20 
6.5 
5 
0 
12 
16 
15 
14 
4 
3-5 
0 
12 
14 
II 
9 
2.5 
1.5 
0 
20 
23 
20 
18 
10 
6 
0 
23 
23 
22 
22 
10 
6.5 
0 
53 
48 
46 
48 
13 
6.5 
0 
27 
29 
32 
27 
8.5 
4-5 
0 
38 
35 
34 
28 
13 
5 
0 
35 
35 
33 
30 
17 
8.5 
0 
35 
35 
33 
31 
16 
9 
0 
79 
80 
78 
77 
20 
9 
0 
43 
49 
47 
40 
13 
7 
0 
68 
64 
62 
49 
23 
II 
0 
56 
50 
49 
47 
30 
26 
0 
45 
43 
41 
38 
25 
17 
0 
902 
912 
902 
922 
53 
34 
0 
60 
66 
63 
58 
30 
24 
0 
902 
902 
902 
88 
57 
45 
0 
^ The first three measurements in each case were made 3, 6 and 9 days respec- 
tively after exposure to the gas; the fourth was made 3 days after restoration of 
the cultures to ordinary air. 
2 Entire inside area of the plate covered with the colony, so that further growth 
was impossible. These values, therefore, are possibly too small, as the colonies 
may have reached the size mentioned before the close of the 12-day period. 
