x 55 
Vines . — The Proteases of Plants (II). 
Acid. 
Alkaline. 
Natural. 
HCN 
24 
hours 
1 fibrin 
gone 
gone 
gone 
jj 
77 
77 
tryptophane 
very strong 
marked 
distinct 
77 
48 
77 
fibrin 
gone 
gone 
gone 
77 
77 
77 
tryptophane 
very strong 
marked 
strong 
NaF 
24 
77 
fibrin 
gone 
gone 
nearly gone 
>> 
77 
77 
tryptophane 
faint 
distinct 
faint 
}> 
48 
77 
fibrin 
gone 
gone 
gone 
)> 
77 
77 
tryptophane 
faint 
marked 
distinct. 
B. Finkler’s Papain. 
Acid. 
Alkaline. 
Natural. 
Toluol 
24 
hours fibrin 
unaltered 
nearly gone 
unaltered 
a 
77 
77 
tryptophane 
none 
none 
distinct 
}> 
48 
77 
fibrin 
unaltered 
nearly gone 
unaltered 
» 
77 
77 
tryptophane 
faint 
distinct 
faint 
HCN 
24 
77 
fibrin 
gone 
gone 
gone 
jj 
55 
77 
tryptophane 
distinct 
faint 
faint 
>} 
48 
77 
fibrin 
gone 
gone 
gone 
}} 
77 
77 
tryptophane 
distinct 
faint 
faint 
NaF 
24 
77 
fibrin 
unaltered 
partly gone 
unaltered 
>} 
77 
77 
tryptophane 
none 
none 
none 
77 
48 
77 
fibrin 
partly gone 
gone 
unaltered 
77 
77 
77 
tryptophane 
faint 
faint 
faint 
c. 
Merck’s Papain. 
Acid. 
Alkaline. 
Natural. 
T oluol 
24 
hours fibrin 
gone 
gone 
gone 
77 
77 
77 
tryptophane 
very strong 
distinct 
marked 
77 
48 
77 
tryptophane 
very strong 
marked 
marked 
HCN 
24 
77 
fibrin- 
gone 
gone 
gone 
77 
77 
77 
tryptophane 
strong 
distinct 
distinct 
77 
48 
77 
tryptophane 
strong 
marked 
strong 
NaF 
24 
77 
fibrin 
gone 
gone 
gone 
77 
77 
77 
tryptophane 
very strong 
distinct 
marked 
77 
48 
77 
tryptophane 
very strong 
strong 
marked 
The maximum 
reactions, in 
this case, were not obtained until 3-4 vols. 
chlorine-water had been added. 
This sample of Merck’s papai'n proved itself to be so exceptionally 
active that there were but slight differences in the results. With the 
object of obtaining clearer differentiation, I repeated the experiment, using 
an extract of half-strength (4 grms. papain to 400 c.c. distilled water). 
