





































STEINBERG: GROWTH OF ASPERGILLUS NIGER 15 
Ye 
—mg. Zn/L | o.cor mg. Zn/L | 0.05 mg. Zn/L o.r mg. Zn/L z.0 mg. Zn/L 
0.312 gram 0.622 gram 0.867 gram 0.797 gram 0.788 gram 
0.34 a 6:686,°°"" O:823°":."" 0.8325." roe ge Fn aes 
265% Gash Ber se ie fo o.Ba5 25 0.790. |“ 
eg, ae 0.018 O8a5 3° PScogoe: °F 0.804 ** 
Cis93 > e718" O8225°,"" gaa yp. 2 a O.872°.5" 
0.302 “ 0.620 “ [yeas ies eae 0.798 “ 
EXPERIMENT IV 
8 weeks 
W 3 
No zine 0.07 mg. Zn/L 0.08 mg. Zn/L 0.09 mg. Zn/L o.10 mg. Zn/L 
0.143 gram 0.833 gram 0.947 gram 0.935 gram 0.806 gram 
0:092 <5. O85o! G.005 -. = 0.885 “* iy £1 Aas 
O19. G685° " O.593°.5- Horr: ** 080200" 
O16 3. 0.786 “‘ OB57 6.052" O870. = 
0.44. et 1. O@6r = OBA 2! Tort... i tb leis 
O16 i" | 0.805! 0.900 ."* 0.940 “ o8as 
¥3 
No zinc 0.02 mg. Zn/L 0.03 mg. Zn/L 0.04 mg. Zn/L | 0.05 mg. Zn/L 
0.307 gram 0.818 gra 0.757 gram 0.786 gram ~=—séiO«wWBQ gram. 
6377 5°. 0.830." OS3r oc: 1 aha 0.85 i 
G.200.7<;* O85e 3% C786. 2" 0.828: VO Oey 
0,369)...“ 0.856. “* O:8465 5S! 0.757. Bae 3S Saks 
O3660.0-- 6.856." 0.704 Lon a leaded | O:878 087 
0.343 “ 0.844 ae 0.803 “e 0.806 ae | 0.847 “ee 
EXPERIMENT V 
9 weeks, no zine 
W3 | Y¥3 
0.127 gram | 0.327 gram 
* 0.908 i { .362 a 
G.078 0.545 4" 
O.085 3" | 0.206. 
erg “ L268. * 
o1os 2 | 6,307. 
