BILIARY CALCULI IN THE SQUETEAGUE. 
135 
Table II. 
Dried substance, finely minced, 
extracted with ether. 
Ether extract (1 ) . Cholesterin and 
fat. 
Residue (2) extracted with dilute 
HC1 (2 per cent) for 12 hours. Effer- 
vescence of C0 2 . 
Residue (4) extracted 4 hours with 
warm dilute HC1. 
HC1 extract (5) contained Mg, Ca, 
Fe, K, Na, H 3 P0 4 , and H»S0 4 . 
Residue (fi 
) extracted with hot 
chloroform. 
Chloroform extract (7). 
amount of bili-rubin. 
Small 
Residue (8) boiled with alcohol. 
Alcohol extract (9). Small amount 
of bili-rubin. 
Residue (10) extracted with dilute 
HC1 alcohol. 
Acid alcohol extract (11). Bili- 
rubin . 
Residue (12) divided into two 
parts. 
Smaller part (14) oxidized with 
KNO;j + HNaCCtj gave 1 1 (P0 4 and 
H;jS0 4 . 
Larger part (13) washed, dried to 
constant weight at 100° C., gave 13+ 
per cent N. 
