[Vor. 8 
26 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
availability. No alcoholic fermentation was noticed in any of 
the strains studied. 
Inulin.—With inulin as a source of carbohydrate the 6 strains 
afforded very small yields ranging from .004 gm. dry weight 
in the lowest to .015 in the highest. Control cultures with 
maltose as the carbohydrate nutrient were entirely comparable 
with the results in table xiv; moreover, no inulase could be 
demonstrated. 
TABLE XIV 
THE aiki OF SEVERAL STRAINS ON HEXOSE- oe ae MEDIA. 
HE QUANTITIES REPRESENT DRY WEIGHTS IN GRAM 
Media Pl P4 | P? B1 
Glucose 0.425 0.360 0.370 Negl. 
Fructose 0.445 0.220 0.352 Negl. 
Galactose 0.315 0.247 0.300 Negl. 
TABLE XV 
THE TT OF THE STRAINS ON AMYGDALIN AND I 22 EER 
E QUANTITIES REPRESENT DRY WEIGHT IN GR 
Media P1 P4 P7 B1 H B3 
Amygdalin .050 .055 .060 .015 .060 rdv 
Maltose . 200 .285 CEN 0.110 .200 Poor 
Amygdalin.—Emulsin was for the first time discovered in 
fungi in 1893 by Bourquelot, who found it in Aspergillus niger, 
and by Gerad, who found it in Penicillium glaucum. The former 
(94) was also able to detect emulsin in many higher fungi found 
on wood. From a variety of experiments performed by many 
investigators, it has been made clear that many glucosides, such 
as amygdalin, arbutin, populin, and salicin are attacked by 
emulsin secreted by certain fungi yielding, of course, glucose 
as one of the products of decomposition. 
