(37) 



TABLE I. 

 11. 



III. 



]\rillimetor>( of IMillimotcrs of while ot com. 



white of eop. •onsun.e.l :.lt.-r a.Nition "m' 



■^"^ .) cc. wiiter on 1 cc. extract, 



consumed. i alter the lirst 3 days. 



After ^ days, i vVfter the followinp n days. 



1). Pancreas substance I gram 



Acetic acid <>f l"/n '1 c-c- I'-^'C-C'. 

 Glycorin 10 c.c. 



2). I'ancreas sui)stance 1 gram 



Acetic acid of 21/0" o "1 c-C- l^*cc. 

 Glycerin 1Ü cc. 



8). I^ancroas substance i gram 



Acetic acid of 0.5% 1 cc. [.Tec. 

 Glycerin 10 cc. 



4). Pancreas substance 1 gram 



Water i cc. } 3 cc 



Gi veer in 10 cc 



•4..')0 + 4.70, 

 4.70 -j_ 4.80' 



i /yO -^ 4.00, 

 4.70 -f- 4.00' 



4. SO -}- 5 

 4.90 + T) 



2.-10 _|_ t> so; 



2.20 -|- 2. so' 



'IS. 70 



18.30 



10.70 



s.r.o 



became active because of tlie addiliou of waler. Table II shows 

 however tiiat in the oi'iii'iiial ulycei-iu-e.xlracl. not (lihil<'(l w ith w.ilcr. 

 tw ti'vpsiii irJidtcrcr n\ as |»i'eseiit. 



In the experiiiieiils ineiitioiKMl in 'iahh' 11. a Xa.,('()^ sol. of 1 .2",,, 

 has iiaiiieh- been added lo tiie Liivceri)i-e\li'a('l>. II' indeed lrv|tsiii 

 had been set five, Ave niiiiht hei-e liax'e ex|tected di^'eslioii of white 

 of eu'ii,'. The ti'vpsin opei-ates \ei-v elfecli\elv in presence of Xa , CO., 

 of 1.2"/,,, whereas the lattei- enlirelv |)re\ents the transfoiinalion of 

 ti-v|tsino,U('n into Irvpsjn; a fact, already |>ro\('d bv IIkidkmi \in and 

 Avhieh 1 have taken ad\anta<iv of in all niv expei-inienis to |>ro\-e, 

 whether in certain cases I had to deal with material containing 

 trypsin or trypsinogen. 



From these lignres we notice thai 1 ee. acetic acid in concen- 

 tralions' of resp. '1, 2'/._, and 0.5"/,, has not the power, jiisi like 1 v<'. 

 water, to liberate trypsin from i gram of jiancreas sub.stance in the 



