1916] 
DUGGAR AND DAVIS—NITROGEN FIXATION 
TABLE I (Continued) 
NITROGEN FIXATION IN CERTAIN FUNGI AND BACTERIA 
431 
I II ІП | IV V VI VII VIII 
otal N in, Diff. - 
wv f Е CS Sources of N flasks containing cos p* N-fixa- 
да Organism °C. gr and C supplied, tion 
gf ан per cent Comp. | Aver- | Comp. | Aver- 
days mg 
data age data age 3 
12B | Penicillium | 30| 42|] 7 (NHSO,| 70.455 70.630 
digitatum . 18.2 dextrose | 70.630 | 70.513 | 70.560 | 70.618 | —.105 
0.45 70.665 
13B ІР. digitatum, 30 | 42 .014 (МН,):50,| 2.555 2.660 
18.2 dextrose 2.590 | 2.602 | 2.765 | 2.730 | —.128 
2.66 2.765 
14B | Penicillium | 25 | 35 .7 (МН,),50,| 71.890 71.540 
ехрапѕит 18.2 dextrose 72.065 | 71.978 ee 71.633 | .345 
15В |Р. expansum| 25 | 35 .014 (NH)&SO,| 2.415 2.415 
18.2 dextrose 315 2.403| 2.450 | 2.433 | —.030 
16 |Glomerella | 25 | 30 | Uschinsky sol. 7.665 7.63 
Gossypit.. cornmeal decoct. | 7.455 | 7.630} 7.875 | 7.758 | —.128 
7.770 7.770 
17B |Phoma Betae| 25*| 25 | mangel decoct. | 26.63 23.765 
10.0 sucrose zi 26.997 | 23.695 | 23.730] 3.267 
.98 
18B |P. Betae....|25*| 25 ши decoct.| 16.975 14.665 
10.0 crose ee 17.652 | 14.595 | 14.630 | 3.022 
19.1 
19B |P. Betae....|25*| 25 7 (NH>:SO,| 70.840 8.845 
18.2 dextrose 70.735 |70.700| 69.020 | 68.927 | 1.773 
0.525 8.915 
20B |P. Веме.....25“ 25| .014 (NH;&SO.,| 2.275 2.030 
8.2 dextrose 2.030 | 2.153 > 2.182 | --.029 
21B ІР. Betae....|25*| 89 | mangel decoct. 53.340 45.220 
10.0 sucrose за 52.990 | 45.255 | 45.238| 7.752 
22B |P. Betae....|25*| 89 | sugar beet decoct.| 31.010 25.585 
10.0 sucrose 31.360 | 31.185 | 25.655 | 25.620| 5.565 
231 |Asotobacter | 25 | 28 — sol. | 46.51 5.810 
in elandii 5.0 nnite eer 46.480| 6.405 | 6.108 | 40.372 
244 |А. chroococ- | 25 | 28 аши sol, | 24.57 5.810 
жик mannite 22.085 | 23.007} 6.405 | 6.108 | 16.899 
(Colorado) 2.365 
251 |А. chroococ- | 25 | 28 | soil-compost sol. | 22.586 5.810 
cum.. 5.0 mannite 21.735 | 23.675| 6.405 | 6.108 | 17.567 
(Kansas) 6.70 
РУМИ од 
T In these cases only were 100 cc. of culture solution employed; in all other cases 50 cc. 
