1913-14.] Enzymatic Peptolysis in Germinating Seeds. 119 
activity, the more rapidly will the tyrosin be precipitated, and vice versa. 
The figures obtained in this way are therefore sufficient indication of the 
degree of activity, provided that they are expressed in a manner capable 
of direct comparison, and they are therefore, in the following tables, 
expressed in terms of a unit which, under the conditions of the experiment, 
would produce the first indication of tyrosin in 100 days. The amount of 
moisture contained in the samples has here, as in the case of the Pepton 
Witte digestions, been taken into consideration, the figures shown being 
calculated for dry material. These results are given in the third column. 
Table I. 
Number 
of days. 
Pepton Witte. 
Pepton Roche. 
4 j in water 
o-oo 
4T3 
2-80 
8-56 
6 
7-59 
8-25 
8 
11-60 
20-45 
10 
11-60 
37-40 
13 
11-20 
45-30 
15 
11-0 
58-70 
17 
11-32 
34-60 
Table 11. 
0\ • , 
o-oo 
2-45 
4 > m water 
6'24 
7-88 
6 
9-16 
12-40 
10 
11-50 
24-90 
12 
12-05 
24-40 
13 
14-60 
43-35 
15 
13-27 
34-60 
17 
13-48 
24-06 
Table III. 
01 • 
. m water 
4 f 
o-oo 
4-49 
2-20 
6-30 
6 
7-83 
7-40 
8 
9-77 
16-76 
10 
9-83 
24-30 
12 
9-81 
35-00 
15 
14-10 
42-50 
17 
12-75 
75-40 
19 
1215 
41-20 
20 
10-55 
3940 
22 
11-22 
38-95 
24 
11-12 
Lost. 
26 
13-72 
31-57 
29 
12-84 
25-50 
