CHEMICAL COMPOSITION OF FOOD-FISHES. 
785 
JV, $ 1.0815grm. P(l. = 1.0190 grin. Wfr., gave .1095 grm. Ext. -—10.75% Ext- } 
Ether Ext. 1 1>1015 & = 1.0385 .1150 =10.82 £ Ext in Fr. 7 
Ash. 2.276 grra. Pd. = 2.145 grm. Wfr., gave .1865 grm. Ash. = 8.69% Ash. iD Wfr., or 1.74% Ash. in Fr. 
P 2 O s 0.9030 grm. Pd. =0.8511 grm. Wfr., gave 0.0138 grm. P 2 0 6 = 1.62% P 2 O s ? Av’ge 1.62% P 2 0 5 in Wfr., 
0.9055 =0.8535 0.0138 =1.61 ) or 0.32% P 2 O fi in Fr. 
SOj 0.9050 grm. Pd. =0.8530 grm. Wfr., gave 0.0431 grm. SO 3 = 5.06% S0 3 ) Av’go 5.01% S0 3 in Wfr., or 
0.9020 =0.8501 0.0422 =4.96 5 1.00% S0 3 in Fr. 
A % U Z7 $ 33 - 3 S rm - Fl - " 6 6933 gnn. Wfr., gave 0.2455 grm. Alb. =0.74% Alb. \ Av F f ^5%^. in 
in cold- < 33 3 6.6933 0.2490 0.75 ( L ' * 
water ext. ( ) mWtr. 
Analysis of liquids. 
( Partial drying. — 543.7 grm. fresh substance, “ Fr.” = 24.8 grm. partially dried, *• IV. = 4.56% 
I Pd. in Fr. 
Water Complete drying.— 1.000 grm. Pd. =1.000 grm. Water-free, “ Wfr. '’ = 100.00% ) A , , fln nn0/ 
(dried <! W fr in Pd. [ ^ fr p ( , /o 
in air). I Complete drying.— 1.000 grm. Pd. = 1.000 grm. Water-free, “ Wfr.” = 100.00% ) 1 - in ru> 
I Wfr. in Pd. 
(4.56% Pd. in Fr. X 100.00% Wfr. in Pd. =4 56% Wfr. in Fr., or 95 44% Water in F* 
...... C .6000 grm. Pd. = .6000 grm. Wfr., gave 0.03492 grm. N. =5.82% N. ) Av’ge 5 85% N. in Wfr. 
Nitrogen. { -6015 =.6015 0.03529 =5.88 5 or 0.26% N. in Fr. 
1.1385 grm. Pd. = 1.1385 grm. Wfr., gave .005 grm. Ext. = 0.44<>/o Ext. ) A 
) Ext. in Fr. 
Ether ext. 
02 % 
^ 1.1115 =1.1115 .005 =0.45 
Ash. 3.000 grm. Pd. = 3.0000 grm. Wfr., gave 1.0335 grm. Ash. = 34.45% Ash. in Wfr. , or 1.57% Ash in Fr. 
Recapitulation of analysis. 
[Protein=N X 6.25.] 
- , 
| In water-free substance. 
In fresh substance. 
Constituents. 
Flesh. 
Liquid. 
Flesh + 
liquid. 
Flesh. 
Liquid. 
Flesh -J- 
liquid. 
! - . 
Water 
P. et. 
P.ct. 
P.ct. 
P. ct. 
79. 92 
P. ct. 
95.44 
P.ct. 
87. 57 
Protein 
52. 00 
36. 57 
49. 20 
10. 44 
1.67 
6.11 
Fat (ether extract) .. 
Carbohydrates, etc., 
10. 79 
0.45 
8.92 
2. 16 
0. 02 
1.11 
(by difference) 
28. 52 
28. 53 
28. 52 
5. 74 
1.30 
3. 55 
Ash 
8. 69 
34. 45 
13. 36 
1.74 
1.57 
L 66 
100. 00 
100.00 
100. 00 
100. 00 
100. 00 
100. 00 
Proximate ingredients of flesh directly determined. 
Constituents. 
Water 
Albumen, coagulated from cold-water extract 
Extractives, etc., not coagulated in cold-water ext. 
Gelatin in hot- water extract f. 
Insoluble protein 
Ether extract 
Ash 
Total 
In water- free 
substance. 
In fresh sub- 
stance. 
P.ct. 
P. ct. 
79. 92 
3. 73 
0. 75 
26. 88 
5. 40 
18.67 
3. 75 
33.15 
6. 65 
10. 79 
8. 69 
2. 16 
101. 91 
300. 37 
Laboratory Number 109. 
Name: Oysters, “Sounds.” 
Locality: Princess Bay, Staten Island, New York. 
Received : November 30, 1881, from Dorlon & Shaffer, New York City, 
Description : Thirty oysters ii 
'hirty oysters in shell. 
Weighings in preparation for analysis. 
Flesh 
Liquid 436.0 
Refuse 3,816.0 
Total, 30 oysters.. 
H. Mis. 274 50 
Orms. 
Lbs. 
Oz. 
P.ct 
384.0 
.... 
13.5 
8. 24 
436.0 
. . 
15.4 
9. 35 
3,816.0 
8 
6.6 
81.87 
25.0 
.... 
0.9 
Ovtb* 
4,661.0 
10 
4.4 
100. 00 
