34 Scientific Proceedings (41). 
Dog I. Eck Fistula. 
Date, 
1910. 
Body 
Weight, 
Kilos. 
Amount 
of Urine, 
c.c. 
Total N, 
gram. 
Creatinine, 
gram. 
Creatin, 
gram. 
Amount Fed. 
April 11 
11.85 
625 
3.79 
O.209 
None 
12 
II. 8l 
410 
2.41 
.167 
.040 
13 
11.45 
690 
4-50 
.364 
.084 
2-33 gni. creatin. 
14 
II.60 
330 
3-77 
.251 
.046 
15 
11.50 
340 
2.8l 
.219 
.027 
16 
II. SO 
-=•47 
T "> C 
•135 
.015 
17 
11.30 
420 
5.46 
•399 
.032 
18 
11.20 
490 
2.79 
.172 
.014 
19 
11-35 
84O 
6.29 
.756 
•043 
0.60 gm. creatinine. 
20 
11.05 
240 
2.89 
.166 
.017 
21 
10.80 
420 
4.99 
.318 
.067 
1.2 gm. creatin. 
22 
10.68 
550 
3.57 
.234 
.063 
23 
10.12 
780 
7.64 
.694 
.208 
0.35 gm. creatinine. 
24 
10.07 
425 
3.62 
.187 
.161 
Dog II. 
July 2 
10.67 
170 
4.76 
0.418 
0.017 
3 
10.35 
130 
3-o6 
.346 
.078 
4 
10.85 
240 
6.92 
.381 
.004 
5 
10.65 
160 
5.87 
.350 
.041 
1. 1 1 gm. creatin. 
6 
10.70 
115 
2.58 
•253 
.002 
7 
10.60 
100 
2.94 
.288 
.080 
1.0 gm. creatin. 
8 
10.65 
430 
9.99 
•507 
.009 
0.3 gm. creatinine. 
9 
10.60 
180 
4.69 
.460 
.000 
10 
10.78 
135 
2.56 
.360 
.008 
11 
10.72 
160 
4.96 
•373 
.076 
12 
10.68 
320 
3.14 
.326 
.014 
13 
10.71 
175 
3.14 
.378 
.004 
14 . 
10.70 
190 
3.04 
•363 
.017 
15 
10.76 
420 
3-3i 
•340 
.008 
16 
10.72 
355 
4.12 
.387 
.161 
1.07 gm. creatin. 
17 
10.65 
230 
2.77 
.324 
.000 
18 
10.68 
160 
3.89 
.301 
.010 
19 
10.67 
300 
3-03 
.486 
.011 
0.5 gm. creatinine. 
[Compare the data for the 13th with the 21st day and those for 
the 19th with 23d of Dog. I. 1 ] The creatin used in these experi- 
ments gave no reactions for creatinine. We are indebted to Dr. 
S. R. Benedict for creatinine made from this creatin. The 
amounts were computed from weights of substance on the basis 
of quantitative estimation by the Folin method. 
1We are indebted to Drs. E. H. Poole and H. H. Janeway for operative pro- 
cedures. 
