Experiment VI.—July 30, 1917. 3 gm. of Merck’s casein, 0.5 gm. 
Merck’s pancreatin, to 100 cc. Digestion period 4 hours. 
Increase in amino-acids in 25 
Solution. cc. Ce. 0.2 Nn NaOH to 
neutralize. 
Buffer + casein. 0.80 
(G ce 
‘“ ‘« + pancreatin. 2.95 
“ «cc oe 2.75. 2.90 
“ 6c ec 2.95 
éé ey, «“ + KBrO;1: 200 2.85 
« cc £6 hee 2285 - Beau 
«ss rT; as & 2.80 
‘ “ —& 1: 400 2.40 
« “ “é “s 2.60 2.50 
‘ 3 ae Zoo 
‘ “ “ eee ECOG 2.10 
‘ “ “ec ; ‘i: 22 35° 2225 
“ ‘ “ re 2.30 
“ “ ks a 1 50,000 2.60 
és i; ¢¢ e 2.. 35 3245 
(a4 ¢ ce os 2.40 
66 ‘“ oe “* 1: 100,000 2.90 
i i NE “ 2.65 2.60 
‘e “ cc cs 2.60 
“ “ “ > 11505000 3.00 
« ce ‘ o¢ £6 ono 2.95 
“6 6c 5 ibs 2°15 
‘ “ “c “<1: 200,000 3.46 
& “ “ sé 3.50 3.70 
ee “ “ ay 4.10 
“ “ec €é 1: 250,000 3.30 
a3 “ 6 Oe oat Ol00 
“ (14 6c 6c 3.55 
Again the stronger bromate solutions (1: 200 to 1: 100,000) 
appear to inhibit the action of the enzyme, while higher dilu- 
tions (1: 200,000 and 1: 250,000) show a distinct increase in 
digestion products. ; 
460 
