dM Tee aint + Fee 
1921] 
ARMSTRONG—SULPHUR NUTRITION IN THE FUNGI, THIOSULPHATE 261 
TABLE XIII 
SUCCESSIVE INCREASES IN DRY WEIGHT ON THE SOLUTION WITH AN 
INITIAL Pg OF 7.1 
Days 
Fungus 
1 y 9 12 15 18 
A. nig. .9221 .9619 .2316 .0012 — — 
P. cycl. . 1864 .1731 .1431 . 1888 -— — 
B. cin. — . 1352 , 1335 . 1456 . 2387 . 1381 
TABLE XIV 
GROWTH AND RELATIONS OF CERTAIN FUNGI ON MEDIA CONTAINING 
MAGNESIUM SULPHATE. INITIAL Pg 4.1. EXPERIMENT 20 
Dry wt.| Final 
Fungus Days | (gms.) | Pa Sugar | Sulphates| HS | Sporulation 
4 . 8569 126 T +F 0 0 
7 1.0369 1.5 0 + 0 1 
rae 9 .9812 | 1.7 0 + 0 1 
iit: i 12 .9186 I4 0 + 0 1 
15 . 8723 1.9 0 a 0 1 
18 .8428 | 1.9 0 + 0 1 
4 . 38232 3.7 + + 0 1 
7 .8624 | 3.7 + T 0 3 
9 .9446 4.2 em T 0 3 
P. eycl. 12 | 1.1722 | 4.2 | Slight * 0 3 
15 .9807 4.6 Slight -+ 0 4 
18 . 9344 5.0 0 F 0 4 
4 .1915 2.9 =F + 0 3 
7 .5791 2.9 T T 0 3 
: 9 .7224 | 2.4 + + 0 3 
m ue 12 | .8643 | 2.2 4 4 0 3 
15 1.0060 | 2.4 + + 0 3 
18 1.0123 2.4 + "m 0 t 
Control : 4.1 + + 0 
