293 
Ether portion Water portion 
Plate of crystal 
First crystal plate ; 
: from mother liquor 
1.3 260 49 344 49 1100 
83 273 5:9 368 6 1120 
9:3 311 10 399 7 1180 
13:3 420 81 427 81 1210 
143 446 SPL 440 Shil 1210 
153 460 12-8 529 12:9 1200 
165 480 13:8 545 15°8 1210 
148 572 15:7 1190 
16°4 598 18:7 1200 
These results are graphically represented in Fig. 1, where 
the ordinates give the activity, in the same units as before, the 
abseissae the time in days after separation. Curve I gives the 
activity of the ether portion, eurve IT that of the first plate of 
crystal. eurve III the activity of the plate of crystal obtained from 
the mother liquor. 
F0, 
150 
è 
ACTIVITY 
5 70 TS TRE Er) 
—— TIME IN DAYS —— 
Fig. 1. 
As we see the activity of the ether portion increases with the 
time according to the theoretical eurve reaching half final value 
in 22 days. The activity of the first part of aqueous solutions, 
which contained the first crystals, falls to about half value in 
Bulletin III. 2 
