16 STEINBERG: GROWTH OF ASPERGILLUS NIGER 
EXPERIMENT VI 






































10 weeks 
W3 x3 
No zinc 0.09 mg. Zn/L No zinc oo2 mg. Zn/L 
0.104 gram 0.822 gram 0.301 gram 0.822 gram 
0.005 °° 0;80200" 0,264 °°" O.02T 05" 
O;Fa8 Oo i700" "" O.315..7- EOGs oo. 
0.173 “e 0.752 6é 0.244 “ 0.840 se 
og se aaa 0.816..." O25" 5 OB7A 
0.139 =“ 0.792“ 0.276." 0.902 “ 
EXPERIMENT VII 
19 weeks, no zinc 
Ws Ys5 
0.133 gram 0.218 gram 
Ota) O.252 —. 
O.146 0.263 5 
Ae Fi eas e250 o* 
O.12i C218. 1" 
O14 = 6.2405"! 
EXPERIMENT VIII 
20 weeks, W 6 
No zinc o.or mg. Zn/L o.1 mg. Zn/L 0.5 mg, Zn/L 1.0 gm. Zn/L 
0.138 gram 0.298 gram 0.835 gram 0.817 gram 0.932 gram 
0.137 OS cs 0.528 .-** CO Se Oe Retater tl 0.80 bi 
0.174 ® 0485." O.Bse | C82e 2)" O.072 00°F 
0.104 if 0.200." O.835 °° 0.840 ‘ 0.910 “ 
0.125 O26 s 0.895 6.916"? 0.958. * 
0.536. > 0.287 2" | 08 me pec 0843.20 O05." 
5.0 mg. Zn/L 10.0 mg. Sn/L 15.0 mg. Zn/L 20.0 mg. Zn/D 25.0 mg. Zn/L 
0.914 gram 0.880 gram | 0.905 gram 0.947 gram 0.944 gram 
0.932 . 0.869 “* 6.871 * 0.860 “ 0.052. “ 
SO. 0.903 “* 0.894 “* G.o0r) “* oni 
0.967 fc 0.041 \* 0.022." 0.014 0.943 “* 
1.024 0.939 “* 0.917 “ 0.883“ 0.973.“ 
0.963 . — 6,906.“ 0.9025'7 @.901 «°° oo45> 







